What it does - Forces Meta to dedicate a set percentage of your ad set/campaign budget to one specific ad for a limited period, instead of hoping the algorithm gives new creative a chance - Solves the classic problem where new creative competes against an established winner in the same ad set and loses by default before it gets a fair look - Rollout was phased through 2026, roughly 5% of accounts by March/April, ~50% by late May, and near-universal by 10 July 2026 Requirements & limits - Needs at least 2 ads in the ad set (active or draft), it won't appear with a single ad - Works on both new and existing/running ads, any objective, any format - The 7-day tooltip is a recommendation, not a hard cap, the actual range is 1 to 30 days - The creative testing tool is greyed out while a push is running in that campaign - Meta warns that pushing to multiple ads at once may mean minimum spend per ad isn't met Caution - Give a pushed ad 3–5 days before judging cost per result, since forced delivery skews early numbers, and watch frequency, forcing spend can burn through your audience faster than the algorithm would - Don't use it to prop up genuinely weak creative; it fixes a broken testing environment, not a bad offer