What happens after you order
Because the content comes from a study, the proof stage is a check that the values transcribed match the study output, which is worth doing carefully since a transcription error here has consequences a typo elsewhere does not. Production begins once you approve the layout. Labels arrive bound to a record that carries the study date, so a scan tells a worker how current the analysis is. Reorders are triggered by a study revision or a system change rather than by a calendar, which is why this artifact does not follow an annual rhythm.
The full sequence, including what the proof shows and how approval works, is on
how ordering works.