topic Re: 401 when using Admin APIs in Developer

401 when using Admin APIs

Doink — Mon, 23 Feb 2026 11:52:15 GMT

Hi All we are buldinga a monitoring solution for PBI using powershell in SSMS to connect to PBI Admin APIs

Autentication is done using an SP that has:
PBI Service Tenant.ReadWrite.All
Fabric-Admin

the SP is member of a security group. In power bi Adminportal that groupp has been added under Access to protected Admin-APIs

we don´t have any premium or fabric kapacity.

we are geting a 401 when testing using this a small script that just trys to count number of workspaces. The group are not memeber in any WS.

Any on that can help me figure out what we are missing?

BR

Re: 401 when using Admin APIs

Doink — Mon, 23 Feb 2026 12:25:29 GMT

Can the issue be that we are using fabric admin and not PowerBI admin?

Re: 401 when using Admin APIs

v-nmadadi-msft — Wed, 25 Feb 2026 05:10:13 GMT

Hi @Doink ,

This is the interface to use if you want to retireve the list of workspaces, Please cross check if you are using the correct one.

GET https://api.fabric.microsoft.com/v1/workspaces

Reference: Workspaces - List Workspaces - REST API (Core) | Microsoft Learn

The required delegations scope for this is Workspace.Read.All or Workspace.ReadWrite.All

I hope this information helps. Please do let us know if you have any further queries.
Thank you

Re: 401 when using Admin APIs

v-nmadadi-msft — Mon, 02 Mar 2026 06:30:47 GMT

Hi @Doink

I wanted to check if you had the opportunity to review the information provided. Please feel free to contact us if you have any further questions.

Thank you.