403 forbidden or internal server error in while creating plan in planner

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Posted on by WK-04101032-0

Hi community,

I'm getting this error when I want to create a plan in the planner through HTTP in Power Automate with azure app .
{"error":{"code":"InvalidAuthenticationToken","message":"Access token validation failure. Invalid audience.","innerError":{"date":"2025-01-30T09:04:45","request-id":"cc67e835-9f64-426f-b32b-307fe9947338","client-request-id":"cc67e835-9f64-426f-b32b-307fe9947338"}}}

Thanks

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Nived_Nambiar 18,138 Super User 2026 Season 1 on at

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Hi,

when using authorization header value - Bearer word should be included in Authorization header value - see below

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Nived N

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WK-04101032-0 16 on at

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Hi ,
yes i did but it give error :

The error indicates that you do not have the required permissions to access the item, or it may not exist. This could be caused by insufficient permissions for the access token being used in the authorization header of your HTTP request to create a planner plan. To resolve this, have you verified that the application associated with the client ID has the necessary permissions granted in Azure Active Directory to access the Microsoft Graph API for creating planner plans?

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Nived_Nambiar 18,138 Super User 2026 Season 1 on at

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Hi @WK-04101032-0

I think i got the issue - so when you set up the application in azure for calling this graph api - did you assign correct permissions for that app which helps to create the plan ?

https://www.c-sharpcorner.com/article/calling-graph-api-from-power-automate-flow/

these permissions would be requiring for calling your graph api -

https://learn.microsoft.com/en-us/graph/api/planner-post-plans?view=graph-rest-1.0&tabs=http#permissions

Thanks & Regards,
Nived N

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