Due date field is giving an error

[tushar_ghadage]

I want to restrict the selection of past date on the "due date " field on the p_task

for that i have create ui policy for the same..

but whenever i try to complete or cancle the p_task it shows the error mentioned in the ui policy ( even when due date field is emtpy)

how and why can anyone please suggest ..? 

below is the SS for the error -

[Kieran Anson]

Can you share a screenshot of what you've configured for your UI policy?

[Ankur Bawiskar]

@tushar_ghadage 

Please avoid sharing customer instance exact URL, you can hide that.

where are you clicking which opens the pop-up?

is that a custom logic or OOTB one?

what debugging did you do from your side?