We’ve just released the Budget resource for the DoubleClick Ad Exchange Buyer REST API, which can be used to set a daily budget for your real-time bidding campaigns. Each PretargetingConfig will have an associated Budget that it is mapped to via the billingId. Once a PretargetingConfig meets or exceeds the budgetAmount set by its Budget, it will no longer receive bid requests for the remainder of the day. Additional information about this resource can be found in the guide.

The Budget resource in the REST API and the BudgetService in the SOAP API can be used interchangeably; however, we recommend that you use the REST API for managing the budgets of your real-time bidding campaigns.

If you have any questions or comments about the Budget resource, please contact us via the forum or our Ads Developer G+ page.