Third-Party Patching for SCCM

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An error occurred while publishing an update to WSUS: Publishing operation failed, too many locally published categories.

We periodically get reports about the error Publishing operation failed, too many locally published categories when publishing third-party updates. In this article, we will review the root cause and how to resolve the issue. This error generally happens for potential customers trying our service who were previously using another third-party software update catalog provider. The error message for this scenario will look similar to the error below.

An error occurred while publishing an update to WSUS: Publishing operation failed, too many locally published categories.

A Little Background

WSUS has a limitation on the number of unique third-party vendors/products that can be published. When troubleshooting with customers coming from another product, we have seen where some vendor catalogs can cause you to exceed the 100 category limit.

Here’s an example of all the custom third-party products that may be listed.

WSUS too many locally published categories third party updates

Due to this 100 category limitation and after talking to the Microsoft product group, this is why we decided to use a single vendor and product in our catalog.

Resolution

If you receive this error, it means you currently have 100 categories publishing to WSUS. The only workaround for having the maximum number categories published is to delete updates in a category (Vendor / Product) and run the WSUS Cleanup Wizard.

Our publishing service Modify Published Updates Wizard in the Advanced tab allows you to delete published third-party updates. In the example below, we selected two updates from the vendor 7-Zip and choose Delete.

Note: to enable the Delete button, create a new DWORD registry value: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Patch My PC Publishing Service:EnableDeleteUpdates = 1

Delete Third Party Categories From WSUS 100 Limit

Once you have deleted the updates from WSUS, run the WSUS Cleanup Wizard from the Options node in WSUS.

Once you complete the WSUS Server Cleanup Wizard, republish the updates.

That’s it! As long of you removed enough of the old vendors and products, you can publish new third-party updates to WSUS from our catalog.