Setting Up and Using Domains > Creating Domains > Active and Inactive Domains
  
Active and Inactive Domains
To ensure data integrity, you cannot delete a domain. Instead, set the Active field to No. This prevents users from specifying this domain at log-in or using Change Current Domain (36.10.13) to switch to it later.
Note: Unless you have a license for Shared Services Domain, only one domain can be active at the same time.
In a multiple-database environment, you can only change the active status of domains in the current database, and then only when all other databases are active and connected. The system modifies the Active field for the connection records that exist in the other databases. An error displays if any database cannot be accessed and you cannot change the active status.