Using the readiness-timeline record

Fictional planning example only. No customer, test result, supplier acceptance or approval is provided.

Identify the desired receipt date and actual destination, then distinguish estimates from confirmed supplier commitments.
Name the prerequisites and owners: exact artwork, quantity, construction, samples, data or roll brief as applicable.
Obtain supplier acknowledgement of the accepted release event and applicable schedule; payment alone is not a production status.
Track changes, dispatch and receipt separately. All dates and acknowledgements in the real project must come from actual records.