[A] Yes, a drawing can be attached in a bill of materials (BOM) in the form of a document.

[B] While creating the BOM, go to the attachments section which is at the bottom.

[C] Click on Select Files(1) and upload any drawing or other document you may want to attach.

[D] Click Save(2). The BOM is created and the drawing is attached.

Keywords:  Attachment in BOM, attach Drawing