Hi, I am new to Pega and I am facing the below problem. Kindly help.

I have created a case and added some steps to collect user data in the Create Stage in Pega 8.6. I am having two date inputs and I want to show the difference between the two dates on screen.

So I have applied a Declare Expression. But the difference is not getting displayed on the screen, while the result of the Declare Expression is correctly getting populated in pyWorkPage.

So is it happening because I have created the Declare Expression in the Create Stage? If this is the cause, then kindly help me with the solution. How can I run an expression in the 'Create' stage? I am providing the steps below that I encountered while running the case.