SAP Message SADA023 - Administrative action is already locked by user &1

Diagnosis
The specified user is already working in the Database Assistant tochange the configuration.
Certain adminsitrative actions, such as configuration changes andmaintaining integration data, do not allow parallel access.

Procedure

Contact the specified user. Access will only be possible again once thisuser has exited the application for administrative action.

Working in parallel in the Database Assistant with the applications thatdo not change the configuration is always possible.