Sage 100

Is this possible? Client on MAS 90 v4.30.23, using Sales Order, Inventory and Credit Card processing. Through a series of mistakes with an Invoice, several Credit Memos, and more Invoices, have ended up with 1) a credit balance of $50 on the original invoice, 2) an out-of-balance AR Trial Balance Report with the GL A/R account by $50 and 3) they owe the customer a refund of $50 on the customer's Amex card. Can your enter a Sales Order Debit Memo to credit the $50 to a Sales/Returns/Allowance account and on the same Debit Memo refund the customer $50 to their credit card?

At worst case, you can credit back the AMEX using the on line terminal entry of SPS. You should be able to issue another credit memo against the original invoice and credit back the credit card if the AMEX is still active on the original invoice.

The original invoice is no longer active. I will try the on line terminal entry of SPS. I'm gussing the on line terminal entry of SPS will not generate entries into MAS 90 AR or GL, is that correct?

Correct