Sales return with invoice number

A feature is needed to return sales invoices without an invoice number. Essentially, the product is returned using the customer's name, without an invoice number, which then increases the stock. The maximum quantity returned to the customer should be equivalent to the quantity previously sold to them.

For instance, if 100 pieces were sold, the maximum return allowed is 100 pieces. This is because other software offers this feature, and customers have mentioned issues with returning multiple products when only one or two were sold per invoice.

It becomes impractical to locate the invoice, hence the need for a return process based on the customer's name, where the product is selected, and the quantity entered. However, the condition is that only the quantity purchased by the customer can be returned, not more.