Keep the source next to the proof
When a custom order depends on a supplied reference, keep one simple photo or screenshot with the current proof record. The purpose is traceability, not a promise about material, timing, or final appearance.
Make the reference easy to identify
Add a short order label and current revision name to the record. If a source is replaced, preserve the earlier one as history rather than silently overwriting it. Browse /updates/ for additional documentation habits.
