How to show a custom variable on a subject line for notifications

[DevtoSME]

Im trying to include a custom field from the incident form  (u_custom_location) in the subject line of our SLA breach notifications, but i have not ben able to put a correct variable. The field is a reference-conditioned field from the Locations table on the Incident form, and the notifications are triggered from the task table via task_sla.task. While $(task.number), and business_percentage work fine, but $(task.u_custom_location) doesnt return a value. Would I need to dot-walk differently, copy the field to task via a Business Rule, or script the notification? Let me know if there's a recommended approach. Thanks for your help!

[jcmings]

Before anything else, confirm that the u_custom_location field for that task is not empty. I would recommend using the tree-picker to select that specific variable and ensure the syntax you are using is correct.