diff --git a/config/locales/client.ar.yml b/config/locales/client.ar.yml
index 73f937a..b462f53 100644
--- a/config/locales/client.ar.yml
+++ b/config/locales/client.ar.yml
@@ -43,7 +43,6 @@ ar:
         mute: 'صامت'
         follow: 'أول منشور فقط'
         watch: 'كل المنشورات والردود'
-        tag_added: 'تمت إضافة الوسم إلى الموضوع'
         thread: 'كل المنشورات ذات الردود المسلسلة'
       rule_table:
         filter: "تصفية"
@@ -215,7 +214,7 @@ ar:
           title: إرسال رسالة Slack
           fields:
             message:
-              label: رسالة
+              label: رسالة.
             url:
               label: عنوان URL
             channel:
diff --git a/config/locales/client.be.yml b/config/locales/client.be.yml
index 6dbe3c6..729594c 100644
--- a/config/locales/client.be.yml
+++ b/config/locales/client.be.yml
@@ -73,6 +73,6 @@ be:
         send_slack_message:
           fields:
             message:
-              label: Паказаць выдаленыя паведамленні...
+              label: паведамленне.
             url:
               label: URL спасылка
diff --git a/config/locales/client.bg.yml b/config/locales/client.bg.yml
index 4eabbc6..ad1f871 100644
--- a/config/locales/client.bg.yml
+++ b/config/locales/client.bg.yml
@@ -76,6 +76,6 @@ bg:
         send_slack_message:
           fields:
             message:
-              label: Съобщение
+              label: Съобщение.
             url:
               label: URL
diff --git a/config/locales/client.bs_BA.yml b/config/locales/client.bs_BA.yml
index fefe0a1..6d558a5 100644
--- a/config/locales/client.bs_BA.yml
+++ b/config/locales/client.bs_BA.yml
@@ -76,6 +76,6 @@ bs_BA:
         send_slack_message:
           fields:
             message:
-              label: Privatna Poruka
+              label: Privatna Poruka.
             url:
               label: URL
diff --git a/config/locales/client.ca.yml b/config/locales/client.ca.yml
index 847e665..d295402 100644
--- a/config/locales/client.ca.yml
+++ b/config/locales/client.ca.yml
@@ -188,7 +188,7 @@ ca:
         send_slack_message:
           fields:
             message:
-              label: Missatge
+              label: Missatge.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.cs.yml b/config/locales/client.cs.yml
index 84b6e0e..3b4c2b9 100644
--- a/config/locales/client.cs.yml
+++ b/config/locales/client.cs.yml
@@ -77,6 +77,6 @@ cs:
         send_slack_message:
           fields:
             message:
-              label: Zpráva
+              label: Odeslat.
             url:
               label: URL
diff --git a/config/locales/client.da.yml b/config/locales/client.da.yml
index 7e71b65..3e40ba0 100644
--- a/config/locales/client.da.yml
+++ b/config/locales/client.da.yml
@@ -94,6 +94,6 @@ da:
         send_slack_message:
           fields:
             message:
-              label: Meddelelse
+              label: Meddelelse.
             url:
               label: URL
diff --git a/config/locales/client.de.yml b/config/locales/client.de.yml
index e48e925..3910b65 100644
--- a/config/locales/client.de.yml
+++ b/config/locales/client.de.yml
@@ -43,7 +43,6 @@ de:
         mute: 'Stummschalten'
         follow: 'Nur der erste Beitrag'
         watch: 'Alle Beiträge und Antworten'
-        tag_added: 'Tag zum Thema hinzugefügt'
         thread: 'Alle Beiträge mit Thread-Antworten'
       rule_table:
         filter: "Filter"
@@ -215,7 +214,7 @@ de:
           title: Slack-Nachricht senden
           fields:
             message:
-              label: Nachricht
+              label: Nachricht.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.el.yml b/config/locales/client.el.yml
index f0416c8..410a47c 100644
--- a/config/locales/client.el.yml
+++ b/config/locales/client.el.yml
@@ -78,6 +78,6 @@ el:
         send_slack_message:
           fields:
             message:
-              label: Μήνυμα
+              label: Μήνυμα.
             url:
               label: URL
diff --git a/config/locales/client.es.yml b/config/locales/client.es.yml
index 91322e9..fbfb031 100644
--- a/config/locales/client.es.yml
+++ b/config/locales/client.es.yml
@@ -43,7 +43,6 @@ es:
         mute: 'Silenciar'
         follow: 'Solo la primera publicación'
         watch: 'Todas las publicaciones y respuestas'
-        tag_added: 'Etiqueta añadida al tema'
         thread: 'Todas las publicaciones con respuestas en hilo'
       rule_table:
         filter: "Filtrar"
@@ -215,7 +214,7 @@ es:
           title: Enviar mensaje de Slack
           fields:
             message:
-              label: Mensaje
+              label: Mensaje.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.et.yml b/config/locales/client.et.yml
index 072d0fa..a2c15df 100644
--- a/config/locales/client.et.yml
+++ b/config/locales/client.et.yml
@@ -127,7 +127,7 @@ et:
         send_slack_message:
           fields:
             message:
-              label: Sõnum
+              label: Sõnum.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.fa_IR.yml b/config/locales/client.fa_IR.yml
index 6540a73..1799a94 100644
--- a/config/locales/client.fa_IR.yml
+++ b/config/locales/client.fa_IR.yml
@@ -39,7 +39,6 @@ fa_IR:
         mute: 'بی صدا'
         follow: 'فقط اولین نوشته'
         watch: 'همه نوشته‌ها و پاسخ‌ها'
-        tag_added: 'برچسب به موضوع اضافه شد'
       rule_table:
         filter: "فیلتر"
         category: "دسته‌بندی"
@@ -140,7 +139,7 @@ fa_IR:
           title: ارسال پیام اسلک
           fields:
             message:
-              label: پیام
+              label: پیام.
             url:
               label: نشانی اینترنتی
             channel:
diff --git a/config/locales/client.fi.yml b/config/locales/client.fi.yml
index e91cc11..b0d3621 100644
--- a/config/locales/client.fi.yml
+++ b/config/locales/client.fi.yml
@@ -43,7 +43,6 @@ fi:
         mute: 'Vaimenna'
         follow: 'Vain ensimmäinen viesti'
         watch: 'Kaikki viestit ja vastaukset'
-        tag_added: 'Tunniste lisätty ketjuun'
         thread: 'Kaikki viestit, joissa on ketjutettuja vastauksia'
       rule_table:
         filter: "Suodatin"
@@ -215,7 +214,7 @@ fi:
           title: Lähetä Slack-viesti
           fields:
             message:
-              label: Viesti
+              label: Viesti.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.fr.yml b/config/locales/client.fr.yml
index 0a873b7..fb18208 100644
--- a/config/locales/client.fr.yml
+++ b/config/locales/client.fr.yml
@@ -43,7 +43,6 @@ fr:
         mute: 'Mettre en sourdine'
         follow: 'Premier message seulement'
         watch: 'Tous les messages et réponses'
-        tag_added: 'Étiquette ajoutée au sujet'
         thread: 'Tous les messages avec des réponses par fil'
       rule_table:
         filter: "Filtrer"
@@ -215,7 +214,7 @@ fr:
           title: Envoyer un message Slack
           fields:
             message:
-              label: Message
+              label: Message.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.gl.yml b/config/locales/client.gl.yml
index 391f554..3987834 100644
--- a/config/locales/client.gl.yml
+++ b/config/locales/client.gl.yml
@@ -208,7 +208,7 @@ gl:
         send_slack_message:
           fields:
             message:
-              label: Mensaxe
+              label: Mensaxe.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.he.yml b/config/locales/client.he.yml
index 18d31cd..ac8a8c2 100644
--- a/config/locales/client.he.yml
+++ b/config/locales/client.he.yml
@@ -43,7 +43,6 @@ he:
         mute: 'השתק'
         follow: 'הודעה ראשונה בלבד'
         watch: 'כל הפוסטים והתגובות'
-        tag_added: 'תגית נוספה לנושא'
         thread: 'כל הפוסטים עם תגובות בשרשרת'
       rule_table:
         filter: "סינון"
@@ -215,7 +214,7 @@ he:
           title: שליחת הודעה ב־Slack
           fields:
             message:
-              label: הודעה
+              label: הודעה.
             url:
               label: כתובת
             channel:
diff --git a/config/locales/client.hr.yml b/config/locales/client.hr.yml
index 0850784..bc2b61b 100644
--- a/config/locales/client.hr.yml
+++ b/config/locales/client.hr.yml
@@ -147,7 +147,7 @@ hr:
         send_slack_message:
           fields:
             message:
-              label: Poruka
+              label: Poruka.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.hu.yml b/config/locales/client.hu.yml
index fdce3e9..1e94bbc 100644
--- a/config/locales/client.hu.yml
+++ b/config/locales/client.hu.yml
@@ -135,7 +135,7 @@ hu:
         send_slack_message:
           fields:
             message:
-              label: Üzenet
+              label: Üzenet.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.hy.yml b/config/locales/client.hy.yml
index 4a6d461..112049a 100644
--- a/config/locales/client.hy.yml
+++ b/config/locales/client.hy.yml
@@ -188,7 +188,7 @@ hy:
         send_slack_message:
           fields:
             message:
-              label: Նոր Հաղորդագրություն
+              label: Նոր Հաղորդագրություն.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.id.yml b/config/locales/client.id.yml
index 32ecfd6..02445f7 100644
--- a/config/locales/client.id.yml
+++ b/config/locales/client.id.yml
@@ -75,4 +75,4 @@ id:
         send_slack_message:
           fields:
             message:
-              label: pesan
+              label: pesan.
diff --git a/config/locales/client.it.yml b/config/locales/client.it.yml
index f667fcf..1cea6b2 100644
--- a/config/locales/client.it.yml
+++ b/config/locales/client.it.yml
@@ -43,7 +43,6 @@ it:
         mute: 'Silenzia'
         follow: 'Solo il primo messaggio'
         watch: 'Tutti i messaggi e le risposte'
-        tag_added: 'Etichetta aggiunta all''argomento'
         thread: 'Tutti i messaggi con risposte in thread'
       rule_table:
         filter: "Filtro"
@@ -215,7 +214,7 @@ it:
           title: Invia messaggio Slack
           fields:
             message:
-              label: Messaggio
+              label: Messaggio.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.ja.yml b/config/locales/client.ja.yml
index e70d211..0474284 100644
--- a/config/locales/client.ja.yml
+++ b/config/locales/client.ja.yml
@@ -43,7 +43,6 @@ ja:
         mute: 'ミュート'
         follow: '最初の投稿のみ'
         watch: 'すべての投稿と返信'
-        tag_added: 'トピックにタグが追加されました'
         thread: '返信スレッドのあるすべての投稿'
       rule_table:
         filter: "フィルター"
@@ -215,7 +214,7 @@ ja:
           title: Slack メッセージを送信する
           fields:
             message:
-              label: メッセージ
+              label: メッセージ.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.ko.yml b/config/locales/client.ko.yml
index 16133b0..2768948 100644
--- a/config/locales/client.ko.yml
+++ b/config/locales/client.ko.yml
@@ -172,7 +172,7 @@ ko:
         send_slack_message:
           fields:
             message:
-              label: 메시지 보내기
+              label: 메시지 보내기.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.lt.yml b/config/locales/client.lt.yml
index e77322f..5397b6b 100644
--- a/config/locales/client.lt.yml
+++ b/config/locales/client.lt.yml
@@ -83,6 +83,6 @@ lt:
         send_slack_message:
           fields:
             message:
-              label: Žinutės
+              label: Žinutės.
             url:
               label: Nuoroda
diff --git a/config/locales/client.lv.yml b/config/locales/client.lv.yml
index 0febcc2..2d89fdf 100644
--- a/config/locales/client.lv.yml
+++ b/config/locales/client.lv.yml
@@ -76,6 +76,6 @@ lv:
         send_slack_message:
           fields:
             message:
-              label: Ziņa
+              label: Ziņa.
             url:
               label: URL
diff --git a/config/locales/client.nb_NO.yml b/config/locales/client.nb_NO.yml
index 304f7c3..22e03a6 100644
--- a/config/locales/client.nb_NO.yml
+++ b/config/locales/client.nb_NO.yml
@@ -142,7 +142,7 @@ nb_NO:
         send_slack_message:
           fields:
             message:
-              label: Send
+              label: Send.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.nl.yml b/config/locales/client.nl.yml
index 9efed06..1d7885e 100644
--- a/config/locales/client.nl.yml
+++ b/config/locales/client.nl.yml
@@ -43,7 +43,6 @@ nl:
         mute: 'Dempen'
         follow: 'Alleen eerste bericht'
         watch: 'Alle berichten en antwoorden'
-        tag_added: 'Tag toegevoegd aan topic'
         thread: 'Alle berichten met antwoorden in draad'
       rule_table:
         filter: "Filter"
@@ -215,7 +214,7 @@ nl:
           title: Slack-bericht sturen
           fields:
             message:
-              label: Bericht
+              label: Bericht.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.pl_PL.yml b/config/locales/client.pl_PL.yml
index c0230e3..c291bf9 100644
--- a/config/locales/client.pl_PL.yml
+++ b/config/locales/client.pl_PL.yml
@@ -214,7 +214,7 @@ pl_PL:
           title: Wyślij wiadomość Slack
           fields:
             message:
-              label: Wiadomość
+              label: Wiadomość.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.pt.yml b/config/locales/client.pt.yml
index 7f36e8f..30e4235 100644
--- a/config/locales/client.pt.yml
+++ b/config/locales/client.pt.yml
@@ -177,7 +177,7 @@ pt:
         send_slack_message:
           fields:
             message:
-              label: Mensagem
+              label: Mensagem.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.pt_BR.yml b/config/locales/client.pt_BR.yml
index 40e5aa7..81e652b 100644
--- a/config/locales/client.pt_BR.yml
+++ b/config/locales/client.pt_BR.yml
@@ -43,7 +43,6 @@ pt_BR:
         mute: 'Silenciar'
         follow: 'Somente a primeira postagem'
         watch: 'Todas as postagens e respostas'
-        tag_added: 'Etiqueta adicionada ao tópico'
         thread: 'Todas as postagens encadeadas'
       rule_table:
         filter: "Filtro"
@@ -215,7 +214,7 @@ pt_BR:
           title: Enviar uma mensagem do Slack
           fields:
             message:
-              label: Mensagem
+              label: Mensagem.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.ro.yml b/config/locales/client.ro.yml
index 9c3fc9e..34c273f 100644
--- a/config/locales/client.ro.yml
+++ b/config/locales/client.ro.yml
@@ -120,7 +120,7 @@ ro:
         send_slack_message:
           fields:
             message:
-              label: Mesaj
+              label: Mesaj.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.ru.yml b/config/locales/client.ru.yml
index 0b7b57b..5ca795f 100644
--- a/config/locales/client.ru.yml
+++ b/config/locales/client.ru.yml
@@ -43,7 +43,6 @@ ru:
         mute: 'Отключить'
         follow: 'Только первый пост'
         watch: 'Все сообщения и ответы'
-        tag_added: 'Тег добавлен в тему'
         thread: 'Все сообщения с ответами'
       rule_table:
         filter: "Фильтр"
@@ -215,7 +214,7 @@ ru:
           title: Отправить Slack-сообщение
           fields:
             message:
-              label: Сообщение
+              label: Сообщение.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.sk.yml b/config/locales/client.sk.yml
index 1ebeacd..28c49bd 100644
--- a/config/locales/client.sk.yml
+++ b/config/locales/client.sk.yml
@@ -136,7 +136,7 @@ sk:
         send_slack_message:
           fields:
             message:
-              label: Správa
+              label: Správa.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.sl.yml b/config/locales/client.sl.yml
index a695894..53d2da1 100644
--- a/config/locales/client.sl.yml
+++ b/config/locales/client.sl.yml
@@ -78,6 +78,6 @@ sl:
         send_slack_message:
           fields:
             message:
-              label: Opozorilo
+              label: Opozorilo.
             url:
               label: URL
diff --git a/config/locales/client.sq.yml b/config/locales/client.sq.yml
index 5738f51..dbdd535 100644
--- a/config/locales/client.sq.yml
+++ b/config/locales/client.sq.yml
@@ -75,6 +75,6 @@ sq:
         send_slack_message:
           fields:
             message:
-              label: Mesazh
+              label: Mesazh.
             url:
               label: URL
diff --git a/config/locales/client.sr.yml b/config/locales/client.sr.yml
index 787e7d6..a18f809 100644
--- a/config/locales/client.sr.yml
+++ b/config/locales/client.sr.yml
@@ -72,6 +72,6 @@ sr:
         send_slack_message:
           fields:
             message:
-              label: Privatna poruka
+              label: Privatna poruka.
             url:
               label: URL
diff --git a/config/locales/client.sv.yml b/config/locales/client.sv.yml
index f1a3c78..60d17af 100644
--- a/config/locales/client.sv.yml
+++ b/config/locales/client.sv.yml
@@ -211,7 +211,7 @@ sv:
           title: Skicka Slack-meddelande
           fields:
             message:
-              label: Meddelande
+              label: Meddelande.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.sw.yml b/config/locales/client.sw.yml
index 3fbc4f4..bcdf003 100644
--- a/config/locales/client.sw.yml
+++ b/config/locales/client.sw.yml
@@ -176,7 +176,7 @@ sw:
         send_slack_message:
           fields:
             message:
-              label: Ujumbe
+              label: Ujumbe.
             url:
               label: Anwani ya mtandao
             channel:
diff --git a/config/locales/client.te.yml b/config/locales/client.te.yml
index b63ad70..9070b5f 100644
--- a/config/locales/client.te.yml
+++ b/config/locales/client.te.yml
@@ -76,7 +76,5 @@ te:
       scriptables:
         send_slack_message:
           fields:
-            message:
-              label: సందేశం పంపించండి
             url:
               label: యూఆర్ యల్
diff --git a/config/locales/client.th.yml b/config/locales/client.th.yml
index a33a21a..185f2c8 100644
--- a/config/locales/client.th.yml
+++ b/config/locales/client.th.yml
@@ -73,6 +73,6 @@ th:
         send_slack_message:
           fields:
             message:
-              label: ข้อความ
+              label: ข้อความ.
             url:
               label: URL
diff --git a/config/locales/client.tr_TR.yml b/config/locales/client.tr_TR.yml
index 15339b2..92aae25 100644
--- a/config/locales/client.tr_TR.yml
+++ b/config/locales/client.tr_TR.yml
@@ -43,7 +43,6 @@ tr_TR:
         mute: 'Sessize al'
         follow: 'Yalnızca ilk gönderi'
         watch: 'Tüm gönderiler ve yanıtlar'
-        tag_added: 'Etiket konuya eklendi'
         thread: 'Başlıklı yanıt içeren tüm gönderiler'
       rule_table:
         filter: "Filtre"
@@ -215,7 +214,7 @@ tr_TR:
           title: Slack mesajı gönder
           fields:
             message:
-              label: Mesaj
+              label: Mesaj.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.ug.yml b/config/locales/client.ug.yml
index a3a115a..723790b 100644
--- a/config/locales/client.ug.yml
+++ b/config/locales/client.ug.yml
@@ -91,6 +91,6 @@ ug:
         send_slack_message:
           fields:
             message:
-              label: ئۇچۇر
+              label: ئۇچۇر.
             url:
               label: تور ئادرېسى
diff --git a/config/locales/client.uk.yml b/config/locales/client.uk.yml
index 6dd76a1..2d0e756 100644
--- a/config/locales/client.uk.yml
+++ b/config/locales/client.uk.yml
@@ -187,7 +187,7 @@ uk:
         send_slack_message:
           fields:
             message:
-              label: Повідомлення
+              label: Повідомлення.
             url:
               label: Посилання
             channel:
diff --git a/config/locales/client.ur.yml b/config/locales/client.ur.yml
index 6bceedf..d3d879c 100644
--- a/config/locales/client.ur.yml
+++ b/config/locales/client.ur.yml
@@ -188,7 +188,7 @@ ur:
         send_slack_message:
           fields:
             message:
-              label: پیغام
+              label: پیغام.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.vi.yml b/config/locales/client.vi.yml
index cc4e311..f7208ba 100644
--- a/config/locales/client.vi.yml
+++ b/config/locales/client.vi.yml
@@ -107,6 +107,6 @@ vi:
         send_slack_message:
           fields:
             message:
-              label: Tin nhắn
+              label: Tin nhắn.
             url:
               label: URL
diff --git a/config/locales/client.zh_CN.yml b/config/locales/client.zh_CN.yml
index bb0656a..8c7f46a 100644
--- a/config/locales/client.zh_CN.yml
+++ b/config/locales/client.zh_CN.yml
@@ -43,7 +43,6 @@ zh_CN:
         mute: '免打扰'
         follow: '仅第一个帖子'
         watch: '所有帖子和回复'
-        tag_added: '标签已添加到话题'
         thread: '所有带有按线索组织的回复的帖子'
       rule_table:
         filter: "筛选器"
@@ -215,7 +214,7 @@ zh_CN:
           title: 发送 Slack 消息
           fields:
             message:
-              label: 消息
+              label: 发送私信.
             url:
               label: URL
             channel:
diff --git a/config/locales/client.zh_TW.yml b/config/locales/client.zh_TW.yml
index 22917f1..c3a38c6 100644
--- a/config/locales/client.zh_TW.yml
+++ b/config/locales/client.zh_TW.yml
@@ -78,6 +78,6 @@ zh_TW:
         send_slack_message:
           fields:
             message:
-              label: 訊息
+              label: 訊息.
             url:
               label: 網址
diff --git a/config/locales/server.ar.yml b/config/locales/server.ar.yml
index 76f9492..834a2a3 100644
--- a/config/locales/server.ar.yml
+++ b/config/locales/server.ar.yml
@@ -127,6 +127,11 @@ ar:
           error_users: "خطأ: يتعذَّر جلب المستخدمين من Slack"
           error_history: "خطأ: يتعذَّر جلب سجل القناة من Slack"
           error_ts: "خطأ: يتعذَّر جلب الرسالة المطلوبة من Slack"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "تمت إضافة %{added} وإزالة %{removed}"
+            added: "تمت إضافة %{added}"
+            removed: "تمت إزالة %{removed}"
       telegram:
         unknown_chat: "لم يتم إعداد الدردشة على %{site_title}. اطلب من المسؤول إضافة قناة باستخدام \"مُعرِّف الدردشة\" %{chat_id}."
         known_chat: "تم إعداد هذه الدردشة على %{site_title}. يمكنك إعدادها في لوحة المسؤول. (مُعرِّف الدردشة: %{chat_id})"
diff --git a/config/locales/server.bg.yml b/config/locales/server.bg.yml
index 7273823..9736d64 100644
--- a/config/locales/server.bg.yml
+++ b/config/locales/server.bg.yml
@@ -8,5 +8,11 @@ bg:
   chat_integration:
     all_categories: "(всички категории)"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Добавен е %{added} и е премахнат %{removed}"
+            added: "Добавен %{added}"
+            removed: "Премахнат %{removed}"
       flowdock:
         message_title: "публикувано"
diff --git a/config/locales/server.cs.yml b/config/locales/server.cs.yml
index f5822ac..2ec8b5e 100644
--- a/config/locales/server.cs.yml
+++ b/config/locales/server.cs.yml
@@ -8,5 +8,11 @@ cs:
   chat_integration:
     all_categories: "(všechny kategorie)"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Přidáno %{added} a odebráno %{removed}"
+            added: "Přidáno %{added}"
+            removed: "Odebráno %{removed}"
       flowdock:
         message_title: "zveřejněno"
diff --git a/config/locales/server.da.yml b/config/locales/server.da.yml
index 69e81ac..135d668 100644
--- a/config/locales/server.da.yml
+++ b/config/locales/server.da.yml
@@ -15,5 +15,8 @@ da:
           modal_description: "Alle meddelelser i tråden samles i et enkelt forumindlæg. Du får mulighed for at redigere afskriften, inden du sender det."
           transcript_ready: "Afskrift klar"
           continue_on_discourse: "Fortsæt på Forum"
+        messaging:
+          topic_tag_changed:
+            added: "Tilføjet %{added}"
       flowdock:
         message_title: "sidste indlæg"
diff --git a/config/locales/server.de.yml b/config/locales/server.de.yml
index c781315..609475d 100644
--- a/config/locales/server.de.yml
+++ b/config/locales/server.de.yml
@@ -127,6 +127,11 @@ de:
           error_users: "Fehler: Benutzer können nicht von Slack abgerufen werden"
           error_history: "Fehler: Kanalverlauf kann nicht von Slack abgerufen werden"
           error_ts: "Fehler: Angeforderte Nachricht kann nicht von Slack abgerufen werden"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "%{added} hinzugefügt und %{removed} entfernt"
+            added: "%{added} hinzugefügt"
+            removed: "%{removed} entfernt"
       telegram:
         unknown_chat: "Dieser Chat ist auf %{site_title} nicht eingerichtet. Bitte einen Administrator, einen Kanal mit der „Chat-ID“ %{chat_id} hinzuzufügen."
         known_chat: "Dieser Chat ist auf %{site_title} eingerichtet. Konfiguriere ihn im Administrationsbereich. (Chat-ID: %{chat_id})"
diff --git a/config/locales/server.el.yml b/config/locales/server.el.yml
index 77b2372..95441b7 100644
--- a/config/locales/server.el.yml
+++ b/config/locales/server.el.yml
@@ -8,5 +8,11 @@ el:
   chat_integration:
     all_categories: "(όλες οι κατηγορίες)"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Προστέθηκε %{added} και αφαιρέθηκε %{removed}"
+            added: "Προστέθηκε %{added}"
+            removed: "Αφαιρέθηκε %{removed}"
       flowdock:
         message_title: "αναρτήθηκε"
diff --git a/config/locales/server.es.yml b/config/locales/server.es.yml
index c7c9226..6d7bf3c 100644
--- a/config/locales/server.es.yml
+++ b/config/locales/server.es.yml
@@ -127,6 +127,11 @@ es:
           error_users: "Error: no se pueden obtener los usuarios de Slack"
           error_history: "Error: no se puede recuperar el historial del canal de Slack"
           error_ts: "Error: no se puede obtener el mensaje solicitado de Slack"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Añadido %{added} y eliminado %{removed}"
+            added: "Añadido %{added}"
+            removed: "Eliminado %{removed}"
       telegram:
         unknown_chat: "Este chat no está configurado en %{site_title}. Pide a un administrador que añada un canal con «ID de chat» %{chat_id}."
         known_chat: "Este chat está configurado en %{site_title}. Configúralo en el panel del administrador. (ID del chat: %{chat_id})"
diff --git a/config/locales/server.fa_IR.yml b/config/locales/server.fa_IR.yml
index 739e71e..35f8c71 100644
--- a/config/locales/server.fa_IR.yml
+++ b/config/locales/server.fa_IR.yml
@@ -23,6 +23,9 @@ fa_IR:
           rule_string: "*%{index})* *%{filter}* نوشته در *%{category}*"
         transcript:
           posted_in: "نوشته شده در %{name}"
+        messaging:
+          topic_tag_changed:
+            added: "%{added} اضافه شد"
       mattermost:
         status:
           rule_string: "*%{index})* *%{filter}* نوشته در *%{category}*"
diff --git a/config/locales/server.fi.yml b/config/locales/server.fi.yml
index 48f03ba..bd1ff95 100644
--- a/config/locales/server.fi.yml
+++ b/config/locales/server.fi.yml
@@ -127,6 +127,11 @@ fi:
           error_users: "Virhe: käyttäjiä ei voitu hakea Slackista"
           error_history: "Virhe: kanavahistoriaa ei voitu hakea Slackista"
           error_ts: "Virhe: pyydettyä viestiä ei voitu hakea Slackista"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Lisättiin %{added} ja poistettiin %{removed}"
+            added: "Lisättiin %{added}"
+            removed: "Poistettu tunniste %{removed}"
       telegram:
         unknown_chat: "Tätä keskustelua ei ole määritetty sivustolla %{site_title}. Pyydä järjestelmänvalvojaa lisäämään kanava keskustelutunnuksella %{chat_id}."
         known_chat: "Tämä keskustelu on määritetty sivustolla %{site_title}. Määritä se hallintapaneelissa. (Keskustelutunnus: %{chat_id})"
diff --git a/config/locales/server.fr.yml b/config/locales/server.fr.yml
index eeb8eaa..04489e8 100644
--- a/config/locales/server.fr.yml
+++ b/config/locales/server.fr.yml
@@ -127,6 +127,11 @@ fr:
           error_users: "Erreur : impossible de récupérer les utilisateurs à partir de Slack"
           error_history: "Erreur : impossible de récupérer l'historique du canal à partir de Slack"
           error_ts: "Erreur : impossible de récupérer le message demandé à partir de Slack"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Ajout de %{added} et suppression de %{removed}"
+            added: "Ajout de %{added}"
+            removed: "A retiré %{removed}"
       telegram:
         unknown_chat: "Ce chat n'est pas configuré sur %{site_title}. Demandez à un administrateur d'ajouter un canal avec l'ID de chat %{chat_id}."
         known_chat: "Ce chat est configuré sur %{site_title}. Configurez-le dans le panneau d'administration. (ID de chat : %{chat_id})"
diff --git a/config/locales/server.he.yml b/config/locales/server.he.yml
index 31497a3..e543d07 100644
--- a/config/locales/server.he.yml
+++ b/config/locales/server.he.yml
@@ -127,6 +127,11 @@ he:
           error_users: "שגיאה: לא ניתן למשוך את המשתמשים מ־Slack"
           error_history: "שגיאה: לא ניתן למשוך את היסטוריית הערוץ מ־Slack"
           error_ts: "שגיאה: לא ניתן למשוך את ההודעה המבוקשת מ־Slack"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "נוספו %{added} והוסרו %{removed}"
+            added: "נוספו %{added}"
+            removed: "הוסרו %{removed}"
       telegram:
         unknown_chat: "צ׳אט זה אינו מוגדר באתר %{site_title}. נא לבקש מההנהלה להוסיף ערוץ עם ‚מזהה צ׳אט’ כזה %{chat_id}."
         known_chat: "צ׳אט זה מוגדר באתר %{site_title}. יש להגדיר אותו דרך לוח ההנהלה. (מזהה צ׳אט: %{chat_id})"
diff --git a/config/locales/server.hr.yml b/config/locales/server.hr.yml
index 8b1d270..cdc8707 100644
--- a/config/locales/server.hr.yml
+++ b/config/locales/server.hr.yml
@@ -10,5 +10,11 @@ hr:
     group_mention_template: "spominjanje: @%{name}"
     group_message_template: "poruke na: @%{name}"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Dodano %{added} i uklonjeno %{removed}"
+            added: "Dodano %{added}"
+            removed: "je uklonio %{removed}"
       flowdock:
         message_title: "objavljeno"
diff --git a/config/locales/server.hu.yml b/config/locales/server.hu.yml
index 7b8410e..518afc1 100644
--- a/config/locales/server.hu.yml
+++ b/config/locales/server.hu.yml
@@ -8,5 +8,11 @@ hu:
   chat_integration:
     all_categories: "(összes kategória)"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Hozzáadva %{added} és eltávolítva %{removed}"
+            added: "Hozzáadva %{added}"
+            removed: "Eltávolítva %{removed}"
       flowdock:
         message_title: "közzétett"
diff --git a/config/locales/server.id.yml b/config/locales/server.id.yml
index 69031eb..645f564 100644
--- a/config/locales/server.id.yml
+++ b/config/locales/server.id.yml
@@ -7,3 +7,10 @@
 id:
   chat_integration:
     all_categories: "(semua kategori)"
+    provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Ditambahkan %{added} dan dihapus %{removed}"
+            added: "Ditambahkan %{added}"
+            removed: "Dihapus %{removed}"
diff --git a/config/locales/server.it.yml b/config/locales/server.it.yml
index fd9f825..045afca 100644
--- a/config/locales/server.it.yml
+++ b/config/locales/server.it.yml
@@ -127,6 +127,11 @@ it:
           error_users: "Errore: impossibile recuperare gli utenti da Slack"
           error_history: "Errore: impossibile recuperare la cronologia del canale da Slack"
           error_ts: "Errore: impossibile recuperare il messaggio richiesto da Slack"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Aggiunto %{added} e rimosso %{removed}"
+            added: "Aggiunto %{added}"
+            removed: "Ha rimosso %{removed}"
       telegram:
         unknown_chat: "Questa chat non è configurata su %{site_title}. Chiedi a un amministratore di aggiungere un canale con 'Chat ID' %{chat_id}."
         known_chat: "Questa chat è configurata su %{site_title}. Configurala nel pannello di amministrazione. (Chat ID: %{chat_id})"
diff --git a/config/locales/server.ja.yml b/config/locales/server.ja.yml
index 44154d3..ce0213b 100644
--- a/config/locales/server.ja.yml
+++ b/config/locales/server.ja.yml
@@ -127,6 +127,11 @@ ja:
           error_users: "エラー: Slack からユーザーを取得できません"
           error_history: "エラー: Slack からチャンネル履歴を取得できません"
           error_ts: "エラー: Slack からリクエストされたメッセージを取得できません"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "%{added} を追加して %{removed} を削除しました"
+            added: "%{added} を追加しました"
+            removed: "%{removed} を削除しました"
       telegram:
         unknown_chat: "このチャットは %{site_title} でセットアップされていません。「チャット ID」%{chat_id} のチャンネルを追加するよう、管理者に依頼してください。"
         known_chat: "このチャットは %{site_title} でセットアップ済みです。管理者パネルで構成してください。（チャット ID: %{chat_id}）"
diff --git a/config/locales/server.nl.yml b/config/locales/server.nl.yml
index 901078f..c55cc30 100644
--- a/config/locales/server.nl.yml
+++ b/config/locales/server.nl.yml
@@ -127,6 +127,11 @@ nl:
           error_users: "Fout: kan gebruikers niet ophalen van Slack"
           error_history: "Fout: kan kanaalgeschiedenis niet ophalen van Slack"
           error_ts: "Fout: kan verzochte bericht niet ophalen van Slack"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "%{added} toegevoegd en %{removed} verwijderd"
+            added: "%{added} toegevoegd"
+            removed: "%{removed} verwijderd"
       telegram:
         unknown_chat: "Deze chat is niet ingesteld op %{site_title}. Vraag een beheerder om een kanaal toe te voegen met chat-ID %{chat_id}."
         known_chat: "Deze chat is ingesteld op %{site_title}. Configureer hem in het beheerscherm. (Chat-ID: %{chat_id})"
diff --git a/config/locales/server.pl_PL.yml b/config/locales/server.pl_PL.yml
index d6261ad..aea8e45 100644
--- a/config/locales/server.pl_PL.yml
+++ b/config/locales/server.pl_PL.yml
@@ -120,6 +120,11 @@ pl_PL:
           error_users: "Błąd: nie można pobrać użytkowników ze Slacka"
           error_history: "Błąd: nie można pobrać historii kanału ze Slacka"
           error_ts: "Błąd: nie można pobrać żądanej wiadomości ze Slacka"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Dodano %{added} i usunięto %{removed}"
+            added: "Dodano %{added}"
+            removed: "Usunięto %{removed}"
       telegram:
         unknown_chat: "Czat nie jest skonfigurowany na %{site_title}. Poproś administratora o dodanie kanału z ID czatu: %{chat_id}."
         known_chat: "Czat nie jest skonfigurowany na %{site_title}. Skonfiguruj go w panelu administratora. (ID czatu: %{chat_id})"
diff --git a/config/locales/server.pt_BR.yml b/config/locales/server.pt_BR.yml
index 954c07f..0d7b4a2 100644
--- a/config/locales/server.pt_BR.yml
+++ b/config/locales/server.pt_BR.yml
@@ -127,6 +127,11 @@ pt_BR:
           error_users: "Erro: não é possível buscar no Slack"
           error_history: "Erro: não é possível buscar histórico de canais no Slack"
           error_ts: "Erro: não é possível buscar mensagem solicitada no Slack"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Adicionou %{added} e removeu %{removed}"
+            added: "Adicionou %{added}"
+            removed: "Removeu %{removed}"
       telegram:
         unknown_chat: "Este bate-papo não está configurado em %{site_title}. Peça a um administrador para adicionar um canal com \"ID de Bate-Papo\" %{chat_id}."
         known_chat: "Este bate-papo está configurado em %{site_title}. Configure-o no painel de administração. (ID do Bate-Papo: %{chat_id})"
diff --git a/config/locales/server.ro.yml b/config/locales/server.ro.yml
index cec1896..fc3fa1a 100644
--- a/config/locales/server.ro.yml
+++ b/config/locales/server.ro.yml
@@ -8,5 +8,10 @@ ro:
   chat_integration:
     all_categories: "(toate categoriile)"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added: "Adăugată în %{added}"
+            removed: "A eliminat pe %{removed}"
       flowdock:
         message_title: "postat(e)"
diff --git a/config/locales/server.ru.yml b/config/locales/server.ru.yml
index 127d2fa..bd5f06f 100644
--- a/config/locales/server.ru.yml
+++ b/config/locales/server.ru.yml
@@ -126,6 +126,11 @@ ru:
           error_users: "Ошибка: не удается получить пользователей из Slack"
           error_history: "Ошибка: не удается получить историю канала из Slack"
           error_ts: "Ошибка: не удается получить запрошенное сообщение из Slack"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Добавлено — %{added}, удалено — %{removed}"
+            added: "Добавлено: %{added}"
+            removed: "Удалил(а) %{removed}"
       telegram:
         unknown_chat: "Этот чат не настроен на %{site_title}. Попросите администратора добавить канал с идентификатором чата %{chat_id}."
         known_chat: "Этот чат настроен на %{site_title}. Настройте его в панели администратора. (Идентификатор чата: %{chat_id})"
diff --git a/config/locales/server.sk.yml b/config/locales/server.sk.yml
index bb57179..ce8c0c0 100644
--- a/config/locales/server.sk.yml
+++ b/config/locales/server.sk.yml
@@ -8,5 +8,11 @@ sk:
   chat_integration:
     all_categories: "(všetky kategórie)"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Pridané %{added} a odstránené %{removed}"
+            added: "Pridané %{added}"
+            removed: "Odstránené %{removed}"
       flowdock:
         message_title: "odoslané"
diff --git a/config/locales/server.sv.yml b/config/locales/server.sv.yml
index 9231f65..7ce9227 100644
--- a/config/locales/server.sv.yml
+++ b/config/locales/server.sv.yml
@@ -122,6 +122,11 @@ sv:
           error_users: "Fel: Det gick inte att hämta användare från Slack"
           error_history: "Fel: Det gick inte att hämta kanalhistorik från Slack"
           error_ts: "Fel: Det gick inte att hämta begärt meddelande från Slack"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Lade till %{added} och tog bort %{removed}"
+            added: "Lade till %{added}"
+            removed: "Tog bort %{removed}"
       telegram:
         unknown_chat: "Denna chatt är inte konfigurerad för %{site_title}. Be en administratör att lägga till kanalen med 'Chat ID' %{chat_id}."
         known_chat: "Denna chatt är konfigurerad för %{site_title}. Konfigurera den från admin-panelen. (chatt-ID: %{chat_id})"
diff --git a/config/locales/server.te.yml b/config/locales/server.te.yml
index cdadb42..017434b 100644
--- a/config/locales/server.te.yml
+++ b/config/locales/server.te.yml
@@ -8,5 +8,10 @@ te:
   chat_integration:
     all_categories: "(అన్ని వర్గాలు)"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added: "%{added} జోడించబడింది"
+            removed: "తీసివేయబడింది %{removed}"
       flowdock:
         message_title: "పోస్ట్ చేయబడింది"
diff --git a/config/locales/server.tr_TR.yml b/config/locales/server.tr_TR.yml
index b12d2a6..de3c3e3 100644
--- a/config/locales/server.tr_TR.yml
+++ b/config/locales/server.tr_TR.yml
@@ -127,6 +127,11 @@ tr_TR:
           error_users: "Hata: Slack'ten kullanıcı alınamıyor"
           error_history: "Hata: Slack'ten kanal geçmişi alınamıyor"
           error_ts: "Hata: Slack'ten talep edilen mesaj alınamıyor"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "%{added} eklendi ve %{removed} kaldırıldı"
+            added: "%{added} eklendi"
+            removed: "%{removed} kaldırıldı"
       telegram:
         unknown_chat: "Bu sohbet %{site_title} adresinde ayarlanmamış. Bir yöneticiden \"Sohbet Kimliği\" %{chat_id} ile bir kanal eklemesini isteyin."
         known_chat: "Bu sohbet %{site_title} adresinde kurulmuş. Yönetici panelinde yapılandırın. (Sohbet Kimliği: %{chat_id})"
diff --git a/config/locales/server.ug.yml b/config/locales/server.ug.yml
index 8a3bded..5beac3a 100644
--- a/config/locales/server.ug.yml
+++ b/config/locales/server.ug.yml
@@ -8,5 +8,11 @@ ug:
   chat_integration:
     all_categories: "(ھەممە سەھىپە)"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "%{added} قوشۇلدى ۋە %{removed} چىقىرىۋېتىلدى"
+            added: "%{added} قوشۇلدى"
+            removed: "%{removed} چىقىرىۋېتىلدى"
       flowdock:
         message_title: "يوللانغان ۋاقىت"
diff --git a/config/locales/server.uk.yml b/config/locales/server.uk.yml
index e7a4f20..da08786 100644
--- a/config/locales/server.uk.yml
+++ b/config/locales/server.uk.yml
@@ -28,6 +28,11 @@ uk:
         transcript:
           change_first_message: "Змінити перше повідомлення ..."
           change_last_message: "Змінити останнє повідомлення ..."
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "Додано %{added} і видалено %{removed}"
+            added: "Додано %{added}"
+            removed: "Видалено %{removed}"
       telegram:
         status:
           no_rules: "Для цього каналу немає правил. Запустіть <code>/help</code> для нструкцій."
diff --git a/config/locales/server.zh_CN.yml b/config/locales/server.zh_CN.yml
index a30be1c..cbcad36 100644
--- a/config/locales/server.zh_CN.yml
+++ b/config/locales/server.zh_CN.yml
@@ -127,6 +127,11 @@ zh_CN:
           error_users: "错误：无法从 Slack 获取用户"
           error_history: "错误：无法从 Slack 获取频道历史记录"
           error_ts: "错误：无法从 Slack 获取请求的消息"
+        messaging:
+          topic_tag_changed:
+            added_and_removed: "添加了 %{added}，移除了 %{removed}"
+            added: "添加了 %{added}"
+            removed: "移除了 %{removed}"
       telegram:
         unknown_chat: "此聊天未在 %{site_title} 上设置。请要求管理员添加一个聊天 ID 为 %{chat_id} 的频道。"
         known_chat: "此聊天已在 %{site_title} 上设置。在管理面板中进行配置。（聊天 ID：%{chat_id}）"
diff --git a/config/locales/server.zh_TW.yml b/config/locales/server.zh_TW.yml
index 08d4be3..92c5aba 100644
--- a/config/locales/server.zh_TW.yml
+++ b/config/locales/server.zh_TW.yml
@@ -8,5 +8,10 @@ zh_TW:
   chat_integration:
     all_categories: "(所有分類)"
     provider:
+      slack:
+        messaging:
+          topic_tag_changed:
+            added: "已新增 %{added}"
+            removed: "已移除 %{removed}"
       flowdock:
         message_title: "發表於"