How to make comments mandatory in approval task

[#1]

I am creating an approval workflow with All Must Agree.  I would like for rejection commenst to be mandatory and I can see how to do this in a flexi-task but is there a way to do this for an Approval task?

[mlauer · Accepted solution]

Hi Duncan

place a calculated value control in form with formula decision. In preview You can then see the value for rejected - for me it is 1. Then connect a validation rule to comment control: and(equals(Decision,'1'),isNullOrEmpty({Self}))

Kind regards

Manfred