Sets the specified branch as the default.
The default branch is used for API operations when no branch ID is specified.
This method may require higher-level permissions than the caller has, based on their identity and roles and permissions. In these cases, you can ensure the method is called with the required level of authorization by using one of the following:
Branch ID.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.