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Power Platform API: PrincipalNotExists

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Posted on by ___Pool___

Can you please help me solving this error?

{
    "code": "PrincipalNotExists",
    "message": "The request cannot be completed because the principal in tenant ***************************** with object id c17b22cc-************** does not exist."
}

Invoking this API: https://api.powerplatform.com/environmentmanagement/environments?api-version=2024-10-01

The AppRegistration does exists and it is configured as shown

As usual a TOken is being requested to Azure:

then used to make the api call.

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Power Platform integration

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Tom_Gioielli 3,033 Super User 2026 Season 1 on at

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Has the Service Principal been added to the Dataverse environment with proper permissions?

Go to https://admin.powerplatform.com > Manage > Environments > S2S Apps > Add Principle and assign a security role

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___Pool___ 16 on at

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If I understood well what you suggest would allow to access the environment where the app reg is being configured, but what I need is to get details about all envirnoments in power platform

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Tom_Gioielli 3,033 Super User 2026 Season 1 on at

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Sorry about that, thought this was for a specific environment.

I did find this article where it looks like you need to register the Service Principle with Power Platform through the API. Was that done after creating the Service Principal?

Creating a service principal application using API - Power Platform | Microsoft Learn

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CU27021437-0 3 on at

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Hi,

I’m currently facing the exact same PrincipalNotExists error when calling the Environment Management API using client credentials flow.

I’ve already:

Created the App Registration

Verified the Service Principal exists in Entra ID

Successfully obtained an access token for https://api.powerplatform.com

Did you eventually solve the issue?

If yes, was it related to registering the Service Principal in Power Platform via API or assigning a specific tenant-level role or something else?

Thanks in advance!

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