When material is short, substitutes go in—flexible on the floor. Month-end cost gaps appear; complaints cannot trace which lot used alternate material. Allowing substitutes is policy; recording them is discipline. Work orders must log substitute part numbers, ratios, and approvers. Unrecorded substitutes mean two BOMs running at once.
Flexibility saves the day. Missing records cost margin and reputation—count both.
Substitutes Are Accounted Exceptions
Substitute lists carry conditions: spec, supplier, max ratio. Over-ratio escalates to quality. Issue and cost roll on actuals. Complaints start with that lot's substitute record.
- No verbal substitutes; no warehouse swaps without system entry.
- Ratios belong in quality files—not just procurement convenience.
- Chronic high-ratio substitutes should revise the formal BOM.

Ratios Must Audit
The XYN digital intelligence system writes substitutes on work-order consumption—ratio and batch searchable. Substitutes can save due dates; saving due dates is not saving silence. Silent substitutes ring on reconciliation and complaints together.
Count this month's substitutes entered in the system. Stop verbal swaps on the ones that did not.
