This policy setting controls whether co-authors can use the chat functionality within an Office application to collaborate with each other when editing a document.
If you enable or don't configure this policy setting, users can chat with each other when co-authoring a document.
If you disable this policy setting, users can't chat with each other when co-authoring a document.
Note: This policy setting only applies to subscription versions of Office, such as Microsoft 365 Apps for enterprise.
| Registry Hive | HKEY_CURRENT_USER |
| Registry Path | software\policies\microsoft\office\16.0\common |
| Value Name | disabledocumentchat |
| Value Type | REG_DWORD |
| Enabled Value | 0 |
| Disabled Value | 1 |