When an Amazon campaign is out of budget, the ad will stop being shown to customers until the budget is replenished. This means that the ad will not be eligible to be shown to customers until the budget is increased or the campaign end date is reached. If the budget is not increased and the campaign end date has not been reached, the ad will remain inactive until the budget is replenished or the campaign end date is reached.
It is important to monitor the budget of your Amazon campaigns to ensure that they are not running out of budget and to adjust the budget as needed to meet your advertising goals. You can do this by checking the “Budget” column in the Campaign Manager in your Amazon Advertising account. If you notice that a campaign is running out of budget, you can increase the budget for the campaign to ensure that it continues to be shown to customers. Alternatively, you can also choose to end the campaign if it is no longer meeting your advertising goals.