Factory communication fails when the pack is stale and email is the source of truth. Put revision notes, must-match flags, and open questions where the next reader will see them.
Habits that reduce rework
- Date and label each pack revision
- Mark must-match vs flexible attributes
- Point to the sealed wash/fit sample IDs
- List open questions instead of implied assumptions

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When this applies
- Multi-round sampling with changing stakeholders
- Pack and email disagree
