Maintain bill of materials

The bill of materials must be current for the next production run. Send the attached BOM update to Rajiv in engineering and then to Maria in procurement for parts confirmation, with a target of Thursday close of business; before sending, verify quantities match last physical inventory and that the new part numbers have vendor cross-references.

Before I publish this BOM change to the plant, make it easy for a planner to approve: surface the net change in total cost at the top, highlight any part numbers added or removed, show supplier lead times beside each affected item, and flag items whose stock will fall below reorder point after the change.

Production says an essential subassembly is missing from the BOM and work will stop at 06:00 tomorrow. I own the BOM and inventory records, Rajiv in engineering made the schematic change, and procurement might have swapped a vendor part number. I'm worried the wrong part number was published and I can't tell which revision production has. What's the most reliable next move to keep the line running with the least paperwork and risk?

Across several releases we've lost time because BOM edits happen on Fridays, get applied without vendor checks, and force emergency change orders. I manage BOM control, engineering makes frequent design tweaks, and procurement is reactive. Which habit should I change first to stop late edits and repeated reworks — a gating step, a calendar rule, or a different approval owner — and how do I enforce it with minimal overhead?