Log purchase and sales bills.

Add multi-row entries with 50mm or 60mm sheets, move sold goods into an unbilled pool, and clear that pool later when billing is done.

New Inventory Entry

Purchase

Purchase / Stock In Sales / Move To Pool Billing / Clear Pool

Bill number Date

Customer name Phone number

Address Notes

Purchase rows require a price because stock valuation uses purchase lots.

Sales rows move goods out of stock into the sold-but-not-billed pool.

Billing rows clear that pool without reducing inventory stock a second time.

Sales and billing rows can keep price optional, but matching sizes default from the current calculator price list when available.

Valid sizes are even numbers from 8 ft to 24 ft.