1. The first step is to understand the changes from Rev A to Rev B. Cetec ERP can help you by using the BOM compare screen. https://cetecerp.com/support/how-to/how-to-use-the-bom-compare-screen.html
2. Next you can navigate to the RMA list by going to Sales> Invoices> RMA list.
3. Create an RMA with the customer as your internal account.
4. Next set the prcpart to the revision of the part you are going to be putting into stock.
5. Create a rework order.
6. Navigate to the workorder page of the rework page.
7. On the left hand menu, navigate to Maint/Ect+, then BOM management.
8. Here you can add the components you need to add to the assembly, you can also specify that the final assembly you are picking is revision A (this will pull that assembly from stock, and add it back in as revision B once you complete and receive your rework order.)
9. Next you can complete the order like normal, pick your parts, log your time, scrap parts out, then complete and receive.
10. You now have backflushed Rev A and turned it into Rev B.