Sup0108 A Deployment Or Update Operation Is Already In Progress Best ^new^ Today

Here’s a concise write-up for the error SUP0108: A deployment or update operation is already in progress — useful for documentation, a knowledge base, or a troubleshooting guide.

The error SUP0108: A deployment or update operation is already in progress (best) occurs when the WSUS server is already executing a command (like synchronizing, cleaning up, or declining updates) when ConfigMgr asks it to start a new operation. Here’s a concise write-up for the error SUP0108:

If an active deployment ID appears, cancel it: a knowledge base

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