CMG Setup – Subscription ID drop down not populating | SCCM | ConfigMgr

Issue:

When setting up Configuration Manager Cloud Management Gateway (CMG), the Subscription ID drop-down list remains blank even after successful sign-in. The dialog populates the correct Azure AD app and tenant names however the Subscription ID drop-down list remains empty with a red exclamation mark.

The user has Global Administrator permission in the Microsoft Azure tenant.

Subscription ID Drop down

Cause:

The user must have Azure subscription owner permission to make changes to a subscription. In the above scenario, the user had Global admin rights however subscription owner permission was not granted to the user.

Solution:

The user needs to be assigned Azure subscription owner permission. An existing administrator can assign an Owner role (an Azure role) at the subscription scope. Please check this Microsoft article to assign a subscription owner role.

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