How do purchase orders and PO lines work?

Purchase orders, deliveries and commitments

1. The office saves and approves the PO in Project Admin → Purchase Orders before deliveries when possible.
2. The foreman records delivery photos, then records material actually used in a separate Materials entry.
3. TCC keeps a material PO link only for one unique exact match. Missing or ambiguous matches remain for office follow-up.
4. In Weekly Control → Financial Position → Open Commitments, review approved, recognized and remaining amounts and exceptions.

PO approval, delivery status, physical stock, usage and invoice recognition are separate facts. Recording a photo or accepting its review does not approve an invoice, value stock or post Actual Cost. Do not enter a delivery again as usage just to force a match.

See Approve a purchase order and Receipt Review.