How do I re-enable auto-provisioning after disabling it?

If you disabled the auto-provisioning property and need to re-enable it, run the following script in background scripts:

SNC.ScriptingGovernanceUtils.forceAutoProvisioningPropertyUpdate(true);

This programmatically recreates or updates the property to enable auto-provisioning.

From KB ==>  Scripting Governance tool and Conditional Script Writer group overview