Wondering how to write off a customers balance.
A customer owes $100, however I want to write this total off as a gesture of goodwill without deleting said invoices.
Is there a way to do this so that the customers account shows as $0 without increasing my “money received” columns?
The right thing would be to issue credit note under Credit notes tab for $100 and then transfer the credit from credit note to unpaid sales invoice so there will be nothing owing on the invoice.
Credit notes
See: Use credit notes for customer returns and refunds | Manager
Also, there is Wikipedia article on use and purpose of credit notes.