How do you time production for a pack shot?

The pack comes in once that morning's batch already wears the final label. Do not book the session if production is still on a trial and the code does not exist. Ask for the hour the first labelled box comes off, not the hour the shift ends. In Madrid a sample with no batch is photographed and the real production arrives the next day. The sheet states the hour of the labelled box and how many references fit before the batch changes.