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Run report (Interactive Reports → Membership → AR Aging) and confirm the last date it was in balance and that it does go out of balance on the next date.
Then in General Ledger enter the start date the 1st day of the month and the End Date the AS Of date of the AR Aging Report. Put the AR Account number in the Search Field. Then click the Refresh Arrows.
The Ending Balance in the GL grid should match the AR Aging Report.
Go to General Ledger across in the top, Manage, module settings row, then Ledger Periods. Find the last period that was closed and reopen it (double click on the period → uncheck Closed→ Save), then as soon as that completes, reclose it.
Go back and run the Aging Report again for the date it was out of balance and see if it now is in balance.
A/R Aging should be in balance now.
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