To automatically receive purchase orders the parameter ‘Auto Receive’ needs to be enabled. If disabled, purchase orders will be confirmed only and purchase receipts will need to be processed by a user.

This means that there is a purchase order linked to this service job that has not been fully processed and the parameter ‘Do not Allow Posting of Service Jobs with Outstanding Purchase Orders’ is enabled. When this parameter is enabled Service jobs can’t be posted until the PO has been fully processed; i.e. Vendor Invoice posted.