Guest users got 403 when fetching chat/channel members

Question

Hi, it seems all the guest users would see 403 error when fetching chat/channel members.

 

GET /chats/{chatId}/members

GET /channels/{channelId}/members

 

Sample error response:

{     "error": {         "code": "Forbidden",         "message": "InsufficientPrivileges",         "innerError": {             "message": "AclCheckFailed-The initiator 28:app:a0783b62-a438-4df4-b01a-1922ce21ddbe_3e050dd7-7815-46a0-8263-b73168a42c10 is not a member of the roster 01558ad7-48bf-412b-9493-67a5e223873e in the generic thread 19:5dc8eb44-914e-4d99-9e6a-979bec147c3e_fe98a406-419c-4ebd-9943-6324a76b7fd1@unq.gbl.spaces",             "code": "1",             "innerError": {},             "date": "2023-01-30T22:54:58",             "request-id": "a089703d-68ad-4e93-a216-0f8494ae004e",             "client-request-id": "a089703d-68ad-4e93-a216-0f8494ae004e"         }     } }

 

I'm wondering if this error is by design or not? If it's by design to disallow guest users to get conversation members via Graph API, is there any other approach to get the conversation members for guest users? Thanks!

 

Answer 1

Hi @Jing Zhao

This is by design, and currently guest users cannot use the graph API to list chat members, even if the guest has already been added to the chat. I can also reproduce your issue locally:

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