Does your aged payables report have invoices and negative invoices that equal zero? Here are a few options to clean up your aged payable reports.
Option 1: Reverse Both Entries
Find the session ID for both entries. They can be found using Activities>Display Balances>Vendor Balances. In a new accounts payable session, click on the reverse document tool at the top of the window. Enter the session and document number of the original entry. The reversal defaults to using the original entry dates. If this is not what you want, unclick the checks and enter the dates that you want the reversal to be entered. Edit the remaining information as you want it to appear. Click OK, Save, and Post the session.
Option 2: Select Invoices Next Time Vendor is Paid
This is probably the easiest way, assuming you are going to pay the vendor again. When you receive the next invoice from a vendor, select the new invoice along with both the invoices that equal zero. If you are not going to pay the vendor again, follow the Option 1 or Option 3.
Option 3: Issue a Zero Manual Check
In accounts payable, select Enter Manual A/P Checks. The document number (check number) can be the same as one of the invoices, or something you select to identify the transaction, such as (ZeroCK1). The amount will be zero. Select the vendor and select the two invoices that equal each other. Then select the offset to cash. The cash will net to zero as well. Save and post the session. All the invoices should disappear from select to pay and from your accounts payable aging.