Hi activewood

The solution I am about to mention involves obsolete software and is not available for version 8.0B or any higher version. However, you may be in luck.

There is an add-on program to ACCPAC Plus called EIS Inventory Tools which includes a function to "Recalculate I/C sales history" figures. This is exactly what you want to do, and it works on Adagio IC data too (up to version 8.0A). It is fairly straightforward, the only condition for it working is that you must have an unpurged IC history file (try previewing the IC Transaction History report and see how far back it goes).

Of course, you probably don't own EIS Inventory Tools.

If you meet the condition, and are interested in making this work, please contact me privately at steve@sschwartzcpa.com. I will quote you a price for doing the work, and if you say yes, will ask you to send me a copy of your IC data, will run the function, and send it back to you. There is no urgency to this; it can be done any time into the next month.

Steve