From the Sage 100 ERP menu, select Accounts Payable Main | Manual Check and Payment Entry.
In Manual Check and Payment Entry, enter the bank code.
You have to enter a bank code, but the bank code does not affect the entry since cash isn’t being affected in the transaction.
At the Check No. field, enter APP followed by an alphanumeric value of up to three characters and/or digits (for example, APPRW1). The Check Amount field displays zero and can only be viewed.
Enter the vendor number for the credit memo to apply.
Click the Lines tab. At the Invoice No. field, enter the invoice number of the credit memo.
Enter any other credit memos you would like to apply for this vendor.
On the next line, enter the invoice info for for the invoice you wish the credit memo applied against.
At the Invoice Amount field, adjust the invoice amount to the positive amount of the credit memo, if necessary.
Enter any other invoices you need credit applied against.
Make sure the Check Distribution Balance field is zero, and click Accept.
Print and update the Manual Check and Payment Register and Daily Transaction Register and the credit balance is applied.