A status given to ads that Google is still reviewing, but which may run under the following circumstances:

• If you see this status for asset-based ads (for example, responsive ads or app campaign ads), it means that some combination of your assets have been approved and may be running.

• If you see this status for Video ads, it means the video has been reviewed for and approved to run in some contexts.

Whenever you create or edit an ad, Google reviews the ad to make sure that it complies with our advertising policies and is safe and appropriate for users. Find your ad status.

We review most ads within 1 business day, but some reviews may take longer because some ads require more complex review. If your ad is marked "Eligible" for more than 1 full business day, you can contact us and we'll be happy to help you. 

* Nguồn: Google