What domain must administrators choose to apply an Updates Set?

In ServiceNow, when applying an Update Set, administrators must select the Global domain. This is because Update Sets are designed to be applied from the Global domain to ensure that the changes are captured and can be moved across the instance without being restricted by domain separation1. The Global domain is the default domain where all the configuration records are created and where administrators typically work unless they switch to another domain for specific tasks1.

The Update Set system in ServiceNow is a mechanism for grouping and moving customizations from one instance to another or within the same instance. It captures the configuration changes made by administrators and bundles them into a set that can be transferred and applied elsewhere. Since the Global domain is the highest level in the domain hierarchy and is not restricted by domain-specific rules, it is the appropriate choice for applying Update Sets to ensure that the changes are universally available across all domains within the instance