Unable to delete a teams channel message using graph api. error :- Failed-Delete Message: Initiator (8:orgid:**) is not allowed to delete message

Question

I am trying to delete a message inside Teams Channel, the chat was generated using copilot agent. now i used this action to do the delete:-

 

and this endpoint:-

 

`POST /teams/{teamsId}/channels/{channelId}/messages/{chatMessageId}/softDelete`

but we got this error message:-

 

AclCheckFailed-Delete Message: Initiator (8:orgid:68******3ca) is not allowed to delete message

 

Although the user who run the flow is teams owner + we have this setting enabled to allow owners to delete message:-

 

 

any advice?

Thanks

Answer 1

Hi, john john Pter. To delete messages sent by members, team owners have to be allowed that via Messaging policy as below.

The "Owners can delete sent messages" is "Off" by default on Global policy. Therefore, to allow that operation to specific team owners, create a custom policy with the setting "On" and assign the policy to the owners.

I have confirmed a team owner assigned the policy with "Owners can delete sent messages" is "On" can delete messages sent by members via Graph API as well. I hope this helps.