Goods on account

Most dairies also sell something back to their members. Record the product with its name, unit, cost price, selling price and stock, and sell it against a member's account.

The amount goes onto their bill and is subtracted at settlement, so a supplier's payment already accounts for what they took. Stock comes down as you sell and goes back up if a sale is deleted; a product can be marked unlimited if you never count it.

A slip prints for the sale on the same Bluetooth printer.

Deleting a product is a soft delete, so past sales keep their history rather than becoming orphans.

One thing this is not: it is not inventory management. There is no purchase entry, no stock adjustment, no low-stock alert and no reorder level. Stock only ever moves on a sale.