Before a campaign launches, the platform shows what's actually available.
Traffic volume previews during campaign creation, based on the targeting selected.
Bid recommendations derived from that targeting, so an opening bid is informed rather than guessed.
Availability insights by GEO and traffic source, so you can see where the inventory actually is.
Warnings when targeting significantly restricts traffic — the guard against building a campaign that can never deliver.
How to use this well
Check the preview before finalizing targeting, not after launch. If the preview shows thin availability, the fix is to widen targeting then — not to raise the bid later, chasing inventory that was never there.
For operators, this is worth teaching every new advertiser explicitly. It prevents the most common early frustration — a carefully built campaign that never spends — and it prevents the support ticket that follows.
Related: Creating a campaign · Zero-bid alerts and bid recommendations · Delivery is much lower than expected