Hi olfvkst,

Does the reversed check have its number duplicated? Meaning that the same check number was used more than once for the bank? Some versions of Adagio Payables did not deal properly with the situation of having duplicate check numbers and one of the duplicates was reversed.

Does your AP data pass an integrity check? If not, then do NOT run the rebuild function as this could make the situation worse.

For the vendor that had the check reversed, does either the original check (MC or PA) or the reversal (RC) have a current amount other than 0.00? If so then the data needs to be repaired.

If the particular check number was not duplicated, then there is nothing known as to why it could be duplicated in other places such as the posting journal or vendor transactions.