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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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Tom_Gioielli 3,086 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___ 18 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 3,086 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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inzil2k 2 on at

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Have you been able to solve this issue? I'm having the same problem while trying to call Power Platform API with a service principal. All settings are correct but somehow it doesn't see the service principal existing in the tenant.

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___Pool___ 18 on at

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I changed the invoked api to:

https://api.bap.microsoft.com/providers/Microsoft.BusinessAppPlatform/scopes/admin/environments?api-version=2020-10-01

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11manish 726 on at

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The PrincipalNotExists error occurs because the service principal associated with your App Registration is not recognized in the target tenant or Power Platform

environment.

To fix it, ensure the app is in the correct tenant, grant admin consent to create the service principal, and add it as an Application User in Dataverse with

appropriate roles.

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