You may do it with Flow Designer — trigger on task_sla, not on sc_req_item:
1. Create the Flow
Flow Designer → New → Flow (run as System User).
2. Trigger
- Trigger type: Updated
- Table: Task SLA [task_sla]
- Condition:
- Task.Table is Requested Item [sc_req_item]
- Has breached is false
- Active is true
- Stage is In progress
- Business time left less than or equals 48 00:00:00
- Run Trigger: Once ← important, otherwise it fires on every SLA recalculation
3. Action — Send Email
Use the Send Email action (or fire a custom event and let a Notification handle it — cleaner long-term).
- To: dot-walk → Trigger → Task SLA Record → Task → Assignment group → Email
(If the group has no email set, use Look Up Records on sys_user_grmember for that group and loop, or set the group email — recommended.)
- Subject and Body as needed
