How to send messages in a chat via API

Question

Basically i want to repopulate a group chat in MS-Teams incase it gets deleted. So i have backed up all the messages in a json and will run a script to repopulate them in a new group chat by sending the messages in sorted by time manner so it will appear similar to as they appeared before. So i am looking for an API to send message in a group chat but i am getting the following error:: "

{ "error": { "code": "Unauthorized", "message": "Message POST is allowed in application-only context only for import purposes. Refer to https://docs.microsoft.com/microsoftteams/platform/graph-api/import-messages/import-external-messages-to-teams for more details.", "innerError": { "date": "2023-07-12T12:00:13", "request-id": "c88404fc-1233-445a-bdb7-cdfef1aa86e3", "client-request-id": "c88404fc-1233-445a-bdb7-cdfef1aa86e3" } } }

Answer 1

Hi @Darsh Mishra

Importing messages in chat is not supported, only team channels support importing third-party platform messages, which requires you to use the Teamwork.Migrate.All application permission to obtain an access token in the application-only context (client credentials flow), then create the team and channel in the migrated state.

After the team and channel have been created, you can begin sending back-in-time messages using the createdDateTime and from keys in the request body.

Hope this helps.

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