| Document | Statuses | Posts to the ledger when… |
|---|---|---|
| Purchase order | Draft → Open → Partially received → Fully received → Partially billed → Fully billed → Closed | Never on its own. Goods receipts move stock; the bill posts the liability. |
| Bill | Draft → Open → Partial → Paid; Overdue; Voided | Marked as open. |
| Vendor credit | Draft → Open → Closed; Cancelled | Marked as open. |
| Payment made | Recorded | Immediately. |
The rhythm is the same for every document: create it as a Draft, optionally Submit for approval, then Open it to post it, and finally Pay or Apply as appropriate. Once money has moved against a document it locks to protect the audit trail.