Hi @Workato Test ,
As per the error message you have an invalid audience present in your access token. This error occurs when the access token is acquired for a given resource/API (which is MS graph in your case) but being consumed by different resource/API. You can check the audience by decoding access token using this https://jwt.io
To call MS Graph APIs, audience must be set to https://graph.microsoft.com in access token.
You can refer this similar MS Q&A post for more clarity https://learn.microsoft.com/en-us/answers/questions/513098/error-calling-user-invitation-api-httpsgraphmicros.html
Hope this helps.
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