Enhanced sales cycle: deliver 7, receive 5 then 2

Part payments leave a customer receivable. Later receipts settle that original balance without creating another delivery.

Steps

1. Create delivery for two bottles at 3.50, total 7, with the correct customer and warehouse.
2. If receiving 5 now, enter that amount and settlement account, leaving 2 on account; save and approve.
3. Check the customer’s original document has 2 outstanding and stock decreased by two bottles.
4. When the customer pays the remaining 2, allocate a Sales Receipt Doc to that original document with zero rounding and approve.
5. Confirm the document is settled, cumulative receipts are 5+2=7 and stock moved only once.