USers are always flummoxed by the double approval of the BOM. In 2012 when one creates the BOMs from the released product, the user experienced a single approval . Behind the scenes the system took care of the other one. When you create BOM's via the BOM menu choice, (nobody uses that by the way), you saw the double aprpovoal . One for the BOM itself and the other one for the link between BOM and the parent.

I can guess why this double approval seemed like a good idea but I have never seen two different item numbers being linked to the same BOM. It is always 1- 1.

The vast majority of discrete manufacturing customers would have a sigh of relief when we don't have to deal with that double approval anymore. in D365, bad news, the double approval became visible for the user even while creating BOM from the released product. There is a slider to do the 2 approvals in one click but if you miss that, the user approves the BOM, then wants to activate it and gets to hear "not approved". profoundly counter-intuitive. I can explain many times, the users keep walking into that trap. And for  what? Who needs two approvals? IS there 1 business scenario where I reallyl use that? I have never seen it. It is a design completely detached from the world of manufacturing, based on database structure. We still have a chance to fix it. I am pleaing to finally simplify that approval to one.