Reversing a progress payment billing involves several steps and screens in Costpoint.

1. On the Manage Closed Progress Billing Detail screen, delete the invoice.
2. On the Manage Manual Bills screen, enter a negative manual bill for the amount of the first bill.
3. Verify that the AR account that is used to post the reverse manual bill is the same as was used on the progress payment bill.
4. On the Post Manual Bills screen, post the manual bill.
5. On the Update Open Billing Details Records screen, repopulate Open billing Detail for the transactions that were billed on the progress payment bill but reversed using the reverse manual bill.
6. On the 1443 Info tab of the Manage Project Billing Information screen, change the Estimate to Complete Amt to the correct number.

   This is the cost to complete prior to the progress payment bill that you just reversed.

7. On the Manage Accounts Receivable History screen, find the project\customer for which the progress payment was reversed.
8. Locate the record in the table and scroll to the right until you see the Invoice Type column; change the P value to an S and save the record.
   The invoice is reversed at this point.
9. On the Calculate Progress Payment Bills screen, recompute the progress payment bill.