Get Approver detailes once they actioned from email

Hi,

I am trying to retrieve the approver FQN details using Activity Instance Destination SmartObjects, but it is returning null, even though I have configured a timer to allow for a delay.

Is there any way to retrieve the approver details when the task is actioned directly from email?

I am currently using K2 5.7.

Best Regards,

Thriveni