Making rejection comment mandatory on service portal

[Ankita Gupte]

I already have a Approve and reject widget on service portal like this

Now I only want to make rejection comment mandatory if approver rejects the request with the pop up if they don't fill in the rejection comment. Kindly guide me as I am new to service portal area.

[Ankur Bawiskar]

@Ankita Gupte 

this link has the solution for portal

Portal diaries: Service Portal — Making Rejection Comments Mandatory on Approval Record

Regards
Ankur

[Ankita Gupte]

This I have achieved,

But when I do view all approvals.

On that page when I click reject, no pop up appears.