The Ad Exchange Buyer II API is now deprecated, and the following resources will be sunset on September 29th, 2023:
Accessing the sunset resources will return an error response following the sunset date. Note that RTB Troubleshooting resources aren’t included in this list, and will continue to be supported until further notice.
To continue programmatically accessing your Client Access and Marketplace configurations, you should migrate to the Authorized Buyers Marketplace API. For more information, we recommend that you review the Marketplace guide and samples. If you have any questions or feedback, feel free to reach out to us via the Authorized Buyers API Forum.