# CustomerUser
    # (customer user database backend and settings)
    $Self->{CustomerUser} = {
        Name => 'Datenbank Quelle',
        Module => 'Kernel::System::CustomerUser::DB',
        Params => {
            # if you want to use an external database, add the
            # required settings
#            DSN => 'DBI:odbc:yourdsn',
            DSN => 'DBI:mysql:database=my_ext_db;host=localhost',
            User => 'some_user',
            Password => 'some_password',
            Table => 'customers',
        },
        # customer uniq id
        CustomerKey => 'customers_id',
        # customer #
        CustomerID => 'customers_id',
#CustomerValid => 'valid_id',
        CustomerUserListFields => ['customers_firstname', 'customers_lastname', 'customers_email_address'],
        CustomerUserSearchFields => ['customers_email_address', 'customers_lastname', 'customers_id'],
        CustomerUserSearchPrefix => '',
        CustomerUserSearchSuffix => '*',
        CustomerUserSearchListLimit => 250,
        CustomerUserPostMasterSearchFields => ['customers_email_address'],
#        CustomerUserNameFields => ['salutation','customers_firstname','customers_lastname'],
        CustomerUserNameFields => ['customers_firstname','customers_lastname'],
        CustomerUserEmailUniqCheck => 1,
#        # show now own tickets in customer panel, CompanyTickets
#        CustomerUserExcludePrimaryCustomerID => 0,
#        # generate auto logins
#        AutoLoginCreation => 0,
#        AutoLoginCreationPrefix => 'auto',
#        # admin can change customer preferences
#        AdminSetPreferences => 1,
#        # just a read only source
#        ReadOnly => 1,
        Map => [
            # note: Login, Email and CustomerID needed!
            # var, frontend, storage, shown (1=always,2=lite), required, storage-type, http-link, readonly
#            [ 'UserSalutation', 'Salutation', 'salutation', 1, 0, 'var', '', 0 ],
            [ 'UserFirstname', 'Firstname', 'customers_firstname', 1, 1, 'var', '', 0 ],
            [ 'UserLastname',   'Lastname',   'customers_lastname',   1, 1, 'var', '', 0 ],
            [ 'UserLogin',      'Username',   'customers_email_address',       1, 1, 'var', '', 0 ],
            [ 'UserPassword',   'Password',   'customers_password',          0, 1, 'var', '', 0 ],
            [ 'UserEmail',      'Email',      'customers_email_address',       0, 1, 'var', '', 0 ],
#            [ 'UserEmail',      'Email', 'customers_email_address',           1, 1,
#            'var','$Env{"CGIHandle"}?Action=AgentTicketCompose&ResponseID=1&TicketID=$Data{"TicketID"}&ArticleID=$Data{"Art\
icleID"}', 0 ],
            [ 'UserCustomerID', 'CustomerID', 'customers_id', 0, 1, 'var', '', 0 ],
#            [ 'UserCustomerIDs', 'CustomerIDs', 'customers_ids', 1, 0, 'var', '', 0 ],

#            [ 'UserComment',     'Comment',   'comments',    1, 0, 'var', '', 0 ],
#            [ 'ValidID',         'Valid',     'valid_id',    0, 1, 'int', '', 0 ],
        ],
        # default selections
#           Selections => {
#               UserSalutation => {
#                'Mr.' => 'Mr.',
#                'Mrs.' => 'Mrs.',
#            },
#           },
    };

    # This is the auth. module againt the otrs db
    $Self->{'Customer::AuthModule'} = 'Kernel::System::CustomerAuth::DB';
    $Self->{'Customer::AuthModule::DB::Table'} = 'customers';
    $Self->{'Customer::AuthModule::DB::CustomerKey'} = 'customers_email_address';
    $Self->{'Customer::AuthModule::DB::CustomerPassword'} = 'customers_password';
    $Self->{'Customer::AuthModule::DB::DSN'} = "DBI:mysql:database=my_ext_db;host=localhost";
    $Self->{'Customer::AuthModule::DB::User'} = "some_user";
    $Self->{'Customer::AuthModule::DB::Password'} = "some_password";