Who owes what

The Deyn Book is the free plan's app. On a paid plan, read balances on the owner's dashboard and in Contacts → Customers who owe and Suppliers we owe, where whoever has a balance comes first. Remind on a customer opens WhatsApp with a reminder; Statement on a supplier prints what you bought, paid and owe. Every payment can carry a reference, which prints on the statement.

A return on a credit sale comes off what the customer still owes first; only the rest is paid out. A sale that had goods returned cannot be voided: return what is left instead.