Business Rule not working as expected for email field validation in sc_req_item

[Community Alums]

Scenario:

I need to enforce a rule where users cannot close a task unless the Email field in the sc_req_item table is filled.

What I Did: I created a business rule to check if the Email field is empty, and prevent the task from being closed.

Issue:

The rule is behaving incorrectly in both scenarios:

1. When the Email field is empty, users cannot close the task.

2. When the Email field is filled, users still cannot close the task .

[Uncle Rob]

First off, why are you doing a gliderecord lookup to the RITM, when that's dot-walkable from the sc_task (which is current in this case)? 

Second, did you log out what "gs.nil(ritm.email_id)" actually returns?  Because email_id isn't a field on sc_req_item OOB.  If you had added an email_id field it would be called u_email_id.