🚫 Stop Hard-Coding Sys IDs in ServiceNow Code (Best Practice You Shouldn’t Ignore)
Hard-coding "sys_ids" in scripts is one of the most common (and costly) anti-patterns in ServiceNow development.
It may work today, but it will break tomorrow — especially when your code moves across instances.
❓ Why Hard-Coded Sys IDs Are a Problem
Sys IDs are instance specific. A record in Dev will never have the same sys_id in Test or Prod.
Hard coding them leads to:
❌ Broken functionality after instance migration
❌ Failed update set deployments
❌ Poor maintainability and readability
❌ Increased regression defects
❌ Violations of ServiceNow coding standards
If your code only works in one instance — it’s not production-ready.
Do checkout the below video:
Stop Hardcoding! Best Practices for Assignment Logic in ServiceNow
Thanks,
Shamma
