Merge pull request #8218 from MicrosoftDocs/users/sdanie/480870

MDP Azure Compute Gallery free base image requirement

Author: prmerger-automator[bot]

docs/managed-devops-pools/configure-images.md

@@ -1,7 +1,7 @@
 ---
 title: Configure images
 description: Learn how to configure agent images for Managed DevOps Pools.
-ms.date: 07/29/2025
+ms.date: 08/13/2025
 ---
 
 # Configure Managed DevOps Pools images
@@ -383,6 +383,8 @@ Choose **Azure Compute Gallery images** to specify an image from any Azure Compu
 
 > [!IMPORTANT]
 > Managed DevOps Pools supports only [generalized](/azure/virtual-machines/generalize) Azure Compute Gallery images.
+>
+> Managed DevOps Pools doesn't support Azure Compute Gallery images that are created using a paid base image. If you receive an error like **Image Base is not supported, since it's a paid image. Please provide a different image that is free.**, select a different Azure Compute Gallery image based on a virtual machine that's created using a [free pricing plan](/marketplace/purchase-vm-in-azure-portal#purchase-a-vm-using-the-marketplace-experience) for the base image.
 
 #### [Azure portal](#tab/azure-portal/)