Your principal firm approves promotions, holds compliance sign-off, and registers ad accounts. You brief, they approve, you publish - but liability sits with the principal.
Operating model
1. Brief promotion + creative to principal compliance 2. Receive approval certificate (FRN, expiry, scope) 3. Run ad under your AR status + principal FRN in disclosures 4. Log in promotion register
Common pitfall
Making ad variants after approval - each material variant needs fresh sign-off.