A creator posts your campaign. Somewhere, it says it's paid. Maybe in the bio. Maybe as the 30th hashtag. Maybe nowhere. Where the disclosure goes isn't a detail. Here's what the rules say: 1. X: paid partnership posts need "clear and prominent" disclosure, like #ad#, #paidpartnership# or #sponsored#. Leaving it out can lead to enforcement. 2. Instagram: branded content should use the paid partnership label to tag the brand. 3. FTC (US): a disclosure has to be hard to miss. A line in the bio isn't enough, and the platform's built-in label on its own isn't either. The usual worry is engagement. A study of 583,000 sponsored Instagram posts from UK creators (HypeAuditor × IMTB) found #ad# disclosure wasn't linked to lower engagement. So settle it before launch, on page one of the brief: #ad# in the caption where readers will see it, plus the platform's paid-partnership label where there is one. Projects: where does the disclosure go in your brief?