LREX Monitoring to some items only

You can change from not tracked to LREX-Lot# When Received, Issue Method Expiration if there is no inventory in the system.  You would need to issue the material out, then receive it with its lot number and expiration date.  You may also want to change the item class Lot/Serial Class to LREX.  You can always over-write it at the stock item level but this will ensure that any new item added will default to LREX.  I tested changing the Lot/Serial class with inventory in stock and Acumatica does block it.  Also, you need to make sure that any transactions not yet released/processed for these items have been released/processed.  If you have purchase orders that were created when NotTracked was used and the Lot/Serial Class is changed BEFORE the purchase order receipt, Acumatica will pick up the change and require or assign the lot number and will require the expiration date.  Let me know if I missed anything.

Thanks,

Eric