How to trigger workflow for PR release cancellation?

Hi Team,

I have used the standard workflow WS00000038 for PR release. It is working fine for below:

1. When the PR is created, RELEASESTEPCREATED event is getting triggered and approver gets workitem in his inbox

2. When the PR is released by approver, RELEASED event is getting triggered and notification sent to initiator.

3. When the PR is rejected, REJECTION_START event is getting triggered and notification sent to initiator.

However, it is not working for below,

1. When the rejection is cancelled, notification should be sent to initiator.

2. When the release is cancelled, notification should be sent to initiator.

Please provide your valuable suggestions. Thanks.

Regards,

Prajakta