Configure the initial MES user and set up the MES security mode
- Last UpdatedOct 06, 2025
- 1 minute read
When the MES Client application is opened for the first time, the login dialog box does not appear because users are not yet defined in the MES database. The first task you must perform after opening MES Client for the first time is to create a user with the privilege May run configuration tools. This user can then log into MES Client and other MES applications with configuration privileges.
When creating this user, you will also set the MES security mode.The MES security mode can be OS User or OS Group (but not Native).

For instructions on how to create the initial MES user and set the MES security mode, see the topic "Creating the Initial MES User with Configuration Tool Privileges" in the MES Client User's Guide or online help.