Action Buttons are not getting displayed in UWL

Hi Experts,

I am facing some issues in UWL action buttons and I need your help in resolving this.

When a request is generated in ECC systems, a notification is generated in ECC as well as portal.

In ECC, we can see two buttons in the notification, "Complete" and "Cancel work item in Inbox".

But in portal, these two buttons are not visible in the notifications.

Please let me know how to bring these action buttons in UWL portal.

Thanks a lot,