Merge remote-tracking branch 'upstream/main' into AB#8143-setup-compatibility-checks

Author: v-tappelgate

.openpublishing.redirection.office.json

@@ -1,5 +1,12 @@
 {
   "redirections": [
-    
+    {
+      "source_path": "Office/Client/excel/long-numbers-incorrectly-in-excel.md",
+      "redirect_url": "https://support.microsoft.com/topic/1bf7b935-36e1-4985-842f-5dfa51f85fe7"
+     },
+    {
+      "source_path": "Office/Client/excel/last-digits-changed-to-zeros.md",
+      "redirect_url": "https://support.microsoft.com/topic/1bf7b935-36e1-4985-842f-5dfa51f85fe7"
+     }                 
   ]
 }

Exchange/ExchangeOnline/groups-and-distribution-lists/cannot-reply-all-with-microsoft-365-groups.md

@@ -0,0 +1,43 @@
+---
+title: Can't Use Reply All in Microsoft 365 Groups
+description: Discusses an error in Exchange Online when you select Reply All to an email message that was sent to a Microsoft 365 group.
+author: cloud-writer
+ms.author: meerak
+manager: dcscontentpm
+audience: ITPro
+ms.topic: troubleshooting
+ms.custom: 
+  - sap:Management Groups
+  - Exchange Online
+  - CSSTroubleshoot
+ms.reviewer: batre, v-kccross
+appliesto: 
+  - Exchange Online
+ms.date: 11/07/2025
+---
+
+# Can't use Reply All in email messages in Microsoft 365 groups
+
+Consider the following scenario:
+
+- You're a member of a Microsoft 365 group.
+- You receive an email message that's addressed to the group, and you want to respond to the message.
+- You take the following actions:
+   - In Outlook on the web or new Outlook, go to the navigation bar, select **Groups**, and then select your group name from the list.
+   - Select the email message.
+   - Select **Reply all**.
+   - Enter your response, and then select **Send**.
+
+In this scenario, you receive an error message that states that Exchange Online "Couldn't send this message."
+
+If you select **More details**, you see the following information:
+
+> This message can't be sent because it no longer exists. It can only be discarded. Make sure you copy the contents of the message before you discard if you want to use them later.
+
+## Workaround
+
+To work around this problem, use **Reply** instead of **Reply All**.
+
+## Status
+
+Microsoft is researching this problem and will post more information in this article when it becomes available.

Exchange/ExchangeOnline/onlinetoc/toc.yml

@@ -364,6 +364,8 @@ items:
           href: ../groups-and-distribution-lists/cannot-manage-hidden-group.md
         - name: Can't remove members that exceed the limit
           href: ../groups-and-distribution-lists/cannot-remove-members-exceeding-limit.md
+        - name: Can't use reply all with Microsoft 365 groups 
+          href: ../groups-and-distribution-lists/cannot-reply-all-with-microsoft-365-groups.md
         - name: Can't upgrade distribution lists to Microsoft 365 groups
           href: ../groups-and-distribution-lists/cannot-upgrade-distribution-lists-to-office-365-groups.md
         - name: Common tasks to manage Microsoft 365 groups