Troubleshoot bid adjustments
Having trouble with your bid adjustments? Here are a couple of common issues and what you can do to solve them.
Removed bid adjustments still appear in settings summary
You may see bid adjustments listed in the settings summary at the top of your campaign pages, even though they aren't listed in the table below. If you removed a bid adjustment by entering 0 in the adjustment window, it will still appear as an "Active bid adjustment" in the settings summary. To correct this, just open the bid adjustment window, leave the adjustment field empty, and click Save.
Bid adjustments caused a campaign to be "limited by budget"
If you set a bid adjustment that increases your bids, then your resulting bid may increase the number of auctions your ad is eligible for. In turn, a higher resulting bid can lead to your campaign becoming "limited by budget". In that case, your budget may prevent you from getting all the new traffic available for your campaign.
It's important to keep in mind that a campaign that's "limited by budget" can still be successful and help you meet your advertising goals. However, if your campaign becomes "limited by budget" after setting a bid adjustment, consider increasing your budget to increase clicks, or lowering your bids or bid adjustments to get more clicks within your budget.
Let's say you set a bid of $1 and a daily budget of US$100, and your campaign is getting about 200 clicks and spending US$95 per day (it isn't “limited by budget”). Then, you set a bid adjustment that results in a +100% increase for searches in Chicago on mobile devices for a resulting bid of US$2.00.
Since your increased resulting bid causes your ad to be eligible for more auctions, you would need to spend US$150 to acquire all the possible clicks for your newly available traffic. But if your daily budget remains US$100, your traffic will be "limited by budget." If you don’t change your daily budget, you ads might get fewer clicks.