The Global Catalog server stores the partial representation of every object of the domain. The Partial Attribute Set (PAS) is an attribute set that is returned when a global catalog search is done. When an attribute is included to the Partial Attribute Set, the attribute is returned during global catalog searches.
When the PAS is updated or modified, the schema cache maintained in every domain controller needs a refresh. Execute the below LDIF file on every domain controller as the domain administrator.
dn: changetype:modify add:schemaupdatenow schemaUpdateNow:1