Sage 100 Bill subassemblies are not exploding on the Indented Bill of Materials Report
Resolution
The problem items did not have a Bill Type in BM_BillDetail.m4t. The parent bill was created before the subassembly Bill of Materials were created so the detail line did not have a Bill Type.
Re-enter the line in Bill of Materials Maintenance and delete the original line
or
Use Data File Display and Maintenance to select the line item and edit the Bill Type field to add “S” for Standard Bill.