Travel Request Approval Workflow - TS20000189 - Enter and Send Short Message

Hello everybody,

I am using standard task 20000189 to manage the Travel Request when it needs to be reviewed (activity 479 Change trip).

But when I test my workflow, and I choose Send travel request back for corrections, I expect to have a popup or something similar to what I get with standard task TS20000139 when I reject a Travel Request (Tcode SWUS / Create Document & Send).

Instead, I get a new notification and a new workflow in my inbox Send Reason Text for Trip Correction that I need to execute in order to send the message to the requester.

Is that normal? How can I get the same result as in task TS20000139?

Thanks a lot!