It would be GREAT if Evo had the ability to put an effectivity date on any inventory changes. The way it would work is:
1. Engineering makes a change to an existing product  
2. They enter in a date that the change goes into affect. I would imagine the inventory item would have changes on a certain date such as a change in the item link picture/dimensions/price/ etc
3. The old revision of the part stays current in Evo until the effectivity date when the updates will be filtered down into production.
This would allow us to use the old part revision with other older part revisions to match up. The way we currently have to operate is to make the changes immediately and scrap any parts already made and sitting in the warehouse because they may be incompatible with the existing inventory of other parts in a certain assembly. We would DEFINITELY see a cost savings with this ability if it were possible.
 

Thanks for the idea!!!! I will run it by my people and see if we could possibly use this method....