Created attachment 189247 [details] Showing the amount outstanding, payment, and tendered amounts To recreate: 1. Create a manual invoice 2. Make a payment on the invoice BUT: 1. Set the "amount to be paid" to be less than the total outstanding 2. Set the Amount Tendered to be more than what is being paid The "Change to be given" value is correct, but when you confirm the action you get a 500 error and the payment is not tracked in the accountlines.