Open the pitch from Awaiting Acceptance and you'll see three options.

You're happy with the concept and the terms as proposed. This is your commercial yes — but the pitch isn't live yet. You'll still need to finalise the campaign and get assets to the publisher.

The opportunity is right but the terms aren't. You can propose changes to things like CPC, budget, campaign period, targeting and product links, and the publisher reviews them.

The opportunity isn't one for you. You'll be asked to pick a reason before submitting, and the publisher is notified.

Pitches have an acceptance deadline. Once it passes, the pitch expires and can no longer be accepted.