The Open Payables report results in Adagio should not be different than what you see in AccPac.

- Which options are you selecting for the reports? Are you including zero balance Vendors, applied details and/or fully paid transactions? Any of these settings can influence which records print on this report.

- Do the adjustments and/or payments still exist in the current or historical vendor transactions file? I wonder if the records you see on the Accpac report are from the matching file.

- Period end processing does clear fully paid transactions but not the matching file; this is done when History is cleared.

My guess is that one or more of these scenarios is causing the difference.