Global Resource Setting in Pega (GRS) allows referencing external
system values, port numbers, addresses, and URLs.We
can avoid using fixed text values in rule forms. Application moves to different
environments before it goes live like Dev, QA, Staging, and Pre-prod.When we
migrate an application from one environment to another environment, external system
references such as End Point URLs, JNDI names typically changes depending on
the environment. We cannot log into each environment and update the
rules with correct values or settings by unlocking rule sets, especially
in Production. Global Resource Settings allows us to set values
for settings that can vary depending on the environment without requiring the
update of data instances and integration rules.