I prepared an elecronic payment for supplier 'A'. The statement amount was entered into the amount box and allocated against the invoices. There were six invoices in the suppliers MYOB file. These six invoices were also ticked off to the suppliers statement and the payment totals agreed. The transaction was recorded.
Twelve further payments were processed for different suppliers and included in the final electronic payment batch with no problems.
In the prepare electronic payments window the payment listed for supplier 'A' showed an amount almost double to what had been ticked and matched (the payment amount went from 46 to 90). Five of the six invoices were showing as paid twice (the invoices had not been posted twice).
In summary, the creation of the payment in pay bills matched the suppliers statement. There was no warning of an unbalanced transaction during the payment process. No invoice had been duplicated. There was only one payment process.
The duplicate balance shows in the supplier account as a refund due from the supplier.
Are there any suggestions as to how this error is possible?