I have an inventory question I was hoping someone here could help me answer.  We have some customers that only use their part numbers and I was wondering the best way to set those numbers up in our system. What is the best way to get those numbers to interact with inventory items?  I'm hoping for something similar to the relationship venders and items currently share.  For example You can order the same part from multiple venders using each vender's part number, so how do you get multiple customer part numbers to share the same inventory item?

Any help would be appreciated.