PnPFramework App Upload/Overwrite Failure – Permission Error in App Catalog and throws error "The current user does not have the permission to access the App Catalog"

[mohamedfamin]

Reporting an Issue or Missing Feature

The following functionalities have been failing for the past few days. These operations were working fine until February 18th 2025

• Uploading or overwriting the SharePoint Framework (SPPKG) file into the SharePoint App Catalog programmatically.
• Deploying or publishing the uploaded App Catalog file programmatically.
• Checking whether the App Catalog is enabled or disabled programmatically.

Authorization Method
Azure Entra ID with full site.selected permission

Target Frameworks and Libraries
.NET Framework 4.7.2

Library: SharePointPnPCoreOnline
Version: 3.28.2012

Usage Way: AppManager

.NET 8
Library: PnP Framework
Version: 1.17.0 or 1.17.0 (nightly)
Usage Way: AppManager

Expected behavior

App package (sppkg) file should be uploaded/deployed and check whether app catalog is enabled or not using SharePointPnPCoreOnline/Pnp Framework

Actual behavior

Throwing the error says The current user does not have the permission to
access the App Catalog.

App package (sppkg) file has failed to upload/overwrite/deploy and failing the app catalog whether is enabled or not using SharePointPnPCoreOnline/Pnp Framework

Steps to reproduce behavior

Scenario 1: Programmatically

• Upload/Overwrite/Deploy or publish using SharePointPnPCoreOnline/Pnp Framework using AppManager