Hello Ludius,
You will be able to use the
bidModifier field of the CampaignCriterionService with
CampaignCriterion as AdSchedule. Please check the attached SOAP logs on how to update this as a reference. If you're testing in Java, adding the below two lines of code in
this code sample also will set the ad schedule bids.
AdSchedule schedule = new AdSchedule();schedule.setId(300096L);
You may refer to the SetBidModifier code samples in other languages
here. Can you give this a try and let me know if you have any issues?
Thanks,
Bharani, AdWords API Team