Troubleshoot bid adjustments

Having trouble with your bid adjustments? Here is a common issue and what you can do to solve it.

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 that 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 bear in mind that a campaign that's "limited by budget" can still be successful, and help you to meet your advertising goals. However, if your campaign becomes "limited by budget" after setting a bid adjustment, then consider increasing your budget to increase clicks, or lowering your bids or bid adjustments to get more clicks within your budget.

Example

Let's say that you set a bid of £1 and a daily budget of £100, and your campaign is getting about 200 clicks and spending £95 per day (meaning that it isn't “limited by budget”). Then, you set a bid adjustment that results in a +100% increase for searches in Manchester on mobile devices for a resulting bid of £2.00.

Since your increased resulting bid causes your ad to be eligible for more auctions, you would need to spend £150 to acquire all the possible clicks for your newly available traffic. But if your daily budget stays at £100, then your traffic will be "limited by budget". If you don’t change your daily budget, then your ads might get fewer clicks.

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