You are implementing a new custom promotion action that changes the delivery mode of an order.

What steps are required to make sure that the effects of this action are reverted as soon as the condition that triggered it is NO longer fulfilled? (Choose two.)

A. Implement the undo method in your custom rule action strategy.

B. Create a promotion that uses the inverse action if the condition is NOT fulfilled.

C. Define your custom action item so that it can store the original delivery mode.

D. Define a new session attribute to store the original delivery mode.

Reference: https://answers.sap.com/questions/13183941/new-custom-promotion-action-that-changes-delivery.html