Yes, if you turn on the structure advisor:

  1. Open AI Optimization and create or edit the account's optimization.
  2. In the Budget Structure (ABO/CBO) field, check Notify me when it is worth switching from ABO to CBO (or the opposite).
  3. Save.

The AI only notifies you: nothing is switched without your approval. When the budget structure is costing you results, you get a notification with the numbers behind it and you decide. It's normal to go weeks without a notice: a recommendation only appears when the campaign has enough data and the expected gain is greater than the variation it already has. Switching the structure restarts the campaign's learning, so the decision is yours.