Hi Gary,
What version of Adagio Receivables are you using? This is important.
If you have version 8.1A or earlier, then you cannot run the report at all as of a date prior to your period end date; you will instead get an error message.
If you have version 9.0A or later, then the Aged Trial Balance report will recalculate the transaction listings - even if they have been cleared to history - when you pick 'Calculate as of'. If you maintain AR History for a long time, that will naturally mean that the report will take longer to run because it takes longer to determine which transactions were current as of the report date.
Results are determined based on whether transactions still exist in Current or History, and the completion dates of invoices stored in the AR Matching file. Incomplete or incorrect data will produce an incorrect report.
To speed up a back-dated Aged Trial Balance report, you may want to consider purging some of your older History, and keep a copy of the pre-purged data for reference if you need it. But before doing this, it would be good to discuss your historical lookup needs and weigh the pros and cons of purging history.
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Regards,
Softrak Tech Support