Configuring End-Date Behavior for Territory Nodes
Without configuration, territory node records become read-only when a record’s effective end date has passed.
Depending on your business requirements, you might want to reconfigure this behavior so that territory node records do not become read-only after the effective end date.
To allow territory nodes to be edited after the effective end date
In Siebel Web Tools, for the Territory Hierarchy Node business component, inactivate the user property called BC Read Only Field and deploy your changes to the runtime repository.