On Tuesday, July 24, we released some bug fixes that unfortunately prevented some advertisers from modifying campaigns that leverage the ‘position preference’ and ‘preferred cost bidding’ features. Our engineers diagnosed the issue yesterday and we plan to correct the issue today.

We apologize for any inconvenience this may have caused, and will notify you as soon as a fix is in place.

– Jon Diorio, Product Marketing

Symptoms:

• GetAllCampaign requests do not return the campaign IDs of campaigns that have enabled the Position Preference and Preferred Cost Bidding advanced bidding features.
• Attempts to access one of these campaigns prompts a “The API does not support this type of campaign” error code.