Hi Cindy,

Could the transaction have been entered and posted with a mistake? When you have the transaction in GL highlighed on the Transactions grid, try using the 'View GL Entry' button to see the entire entry. This could help identify what other accounts may have debit/credit differences.

Does the GL Posting journal for this entry show the correct debit/credit amount? If the posting journal has the wrong (negative) amount, then the problem was in the GL batch prior to posting. Also on the posting journal will be the Created Date, the Last Edited Date and the Posting Date. It may be that the batch was edited after retrieval and prior to posting.

You mentioned that the check is correct in AP, both in the Vendor Transaction and presumably in the AP check posting journal. This would imply that there were no problems in AP and the issue is limited to within GL.

To fix this, you would need to Unpost the batch that contained this AP check, make a correction to the entry in question, and re-post that batch. It may be beyond sleuthing for why this happened, especially if the batch was edited or if it was rebuilt from a data integrity check due to posting errors.