If you try to create a desktop pool, the operation fails if the customization specifications cannot be found.

You cannot create a desktop pool, and you see the following message in the event database.

Provisioning error occurred for Machine Machine_Name: Customization failed for Machine

The most likely cause of this problem is that you have insufficient permissions to access the customization specifications, or to create a pool. Another possible cause is that the customization specification has been renamed or deleted.

Verify that you have sufficient permissions to access the customization specifications, and to create a pool.

If the customization specification no longer exists because it has been renamed or deleted, choose a different specification.