- Activate the CDF feature.
           
            - Start the  Customer Defined Fields Parameters (ttadv4590m000)  session.
- Select  and click OK.
 
- Define customer defined fields.
           
            You can define the fields in one of these ways: 
             - Use the Customer Defined Fields option in the  menu of an already started session.
- 
              Use the  Customer Defined Fields (ttadv4591m000)  session. To create customer defined fields of type ‘List’, specify the lists and their constants in the  Lists (ttadv4592m000)  and  List Constants (ttadv4593m000)  sessions. 
 
 
- Convert to runtime.
           
            - Start the  Manage Operation Status (ttmtm3501m000)  session.
- Click  Admin Only  to switch the environment to Admin only mode.
             
              In this mode, normal users can no longer log on to the environment. Users that were already logged on are forcibly logged off. 
               - Log off.
- Wait for a few minutes to stop the shared memory correctly.
- Log on again. The shared memory is down now.
 
 
- Start the  Convert to Runtime Data Dictionary (ttadv5215m000)  session. Convert the customer defined fields and the related domains to the runtime data dictionary.
- Start the  Manage Operation Status (ttmtm3501m000)  session.
- Click  Bring Online  to bring the environment online again, so that normal users can log on again.
             
              
               - Log off.
- Wait for a few minutes to stop the shared memory correctly.
- Log on again. The shared memory is reinitialized.
                This actualizes the processed domain and table definition changes for all users. Do not stop the logon process by closing the browser (tab) during the logon process. You must wait until the LN menu is displayed. 
 
 
 
          
           Note: If you use the Enterprise Modeler Content Pack with LN, consider using the MIT0200 (Customer Defined Fields) wizard to set up Customer Defined Fields. You can execute this predefined wizard from the  Wizards by Project Model (tgwzr4502m000)  session after you specified the business function model for your company.