I see Assembly and Bill of Materials as two separate records, but there isn’t a spot to add components on the Bill of Materials. Any inputs? Note: Our account is not One world

You need to create the BOM, then you can attach Revisions

thanks for the inputs Rich, not sure how to do that but I will give a try

search Bill of material in global search, you will find the page to create the BOM and once you create BOM create Bom Revision