What happens after you order
Certificates are proofed with your imprint, layout and any required fields before payment. Production begins once you approve the layout. Each carries a reference that resolves to the underlying record, so a recipient can verify it without an account and without contacting you. In practice most customers order certificates in a single annual run alongside their tags, because the imprint is identical and the volumes are much smaller than the consumables they accompany.
The full sequence, including what the proof shows and how approval works, is on
how ordering works.