We recently announced that Top content bid adjustments are no longer available for any campaigns. To align with this change, Google Ads API will make the following changes starting November 1, 2022.

1. Attempting to set an AdGroupBidModifier with its preferred_content field set will fail with an ContextError.OPERATION_NOT_PERMITTED_FOR_CONTEXT error.
2. Attempting to retrieve an AdGroupBidModifier with its preferred_content field set will return a zero value for the bid_modifier field.

If you need to retrieve the existing values for these fields for future reference, we recommend that you download these values before November 1, 2022.

If you have any questions or need additional help, contact us using any of the following support options:

• Email: [email protected]
• Support forum: https://groups.google.com/forum/#!forum/adwords-api

- Anash P. Oommen, Google Ads API Team