When a direct delivery product receipt is posted, the sales packing slip is posted automatically.
This process is relatively slow because many checks are still executed (inventory check, credit check etc. etc.)

Proposed optimization for direct delivery product receipt:
When a sales packing slip posting is triggered from a direct delivery product receipt, skip the checks.
1. Inventory is sufficient by definition because we are receiving and delivering the goods at the same moment
2. Credit check is of no importance, because the actual delivery has taken place.
3. Also in an intercompany direct delivery scenario, the above applies