A bid range that Facebook suggests to advertisers to ensure that their ads receive the right amount of impressions.
The necessary bid for a specific ad may change over time due to changes in the available pool of ads, as well as the ad’s performance. Bidding below the suggested range will make it unlikely for your ad to receive impressions, so it’s recommend to bid within or above the suggested range. You can check your Ads Manager at any time for the most up-to-date bid range for each ad you’re currently running.
