We are having a case life cycle , where in the 1st stage ,one set of user( Say Persona X ) gets involved . Once X , submit the last assignment on the 1st stage , the case goes to 2nd stage and in it different set of user ( Say Persona Y ) gets involved. 

Now, we want to show some confirmation   message to X persona ->whenever the case goes to 2nd stage , mentioning -that , this case doesn't need any input from him or some thing like that , so that , UI  become more intuitive .  In Cosmos, we used to achieve this using Confirm harness , configured in the respective flow action . 

Can someone please guide, how we can achieve this in Constellation?  We do see, a tiny pop -up comes in the below -showing some confirmation but , it seems , user is going to ignore that .

We are in Pega 24.1.2.