How to call "findMeetingTimes" API?

Question

When called the "/users/{id|userPrincipalName}/findMeetingTimes" API using token that got by "Get access without a user" channel, there was a error like bellow,

The document about Microsoft Graph said this API not support the "Application" permission, if yes, how can I call the "/users/{id|userPrincipalName}/findMeetingTimes" API without letting the user log in?

Answer 1

@ChrisShang-4172, Thank you for reaching out. The following error says "Invalid user address", it means that you might not listing the meeting times for yourself but rather someone else. This API would only be able to list meetingTimes for the user who has got the token from Azure AD. In the userId/userPrincipalName section if you put down your own UPN or the UPN of the user who has requested the token from AAD (which is used as bearer token to call this api), it should get you a result and http status 200 Ok.

Please refer to the screenshot below:

Hope this helps.

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Answer 2

Hi @soumi-MSFT ,
Thank you very much for your feedback.
Initially, I wanted to use the service account to get the access token programmatically in the background, and then using the token to get calendar information about the user. Follow the documentation steps(https://learn.microsoft.com/en-us/graph/auth-v2-service?view=graph-rest-1.0), through the authorization("Calendars.Read" permission) of the administrator, I also successfully obtained token.

When I use this token to access other people's information through the "getSchedule" API, it works.

But when I use this token calling "findMeetingTimes" API, no matter whose information was obtained, the error occurred.

Answer 3

Thanks for your reply @soumi-MSFT , the token obtained by using the Authorization-Code Grant Flow successfully calls the "findMeetingTimes" API.

Reference: https://learn.microsoft.com/en-us/graph/auth-v2-user?view=graph-rest-1.0

Answer 4

Hello, can you please elaborate how you fixed it? because I'm getting the same error: BadArgument, Invalid user address, UnsupportedScenario.

I'm using the OAuth2, is working fine with several endpoints such as: getSchedule, events, etc. But doesn't work with findMeetingTimes. I also have the delegate rights for calendar.ReadWrite and User.Read. So, I don't know what is missing.