For more information on visual standards for descriptive flexfields, see the Oracle Applications User Interface Standards for Forms-Based Products.
For information on building flexfields into your forms, see: Overview of Flexfields.
All entities should provide a descriptive flexfield to allow customization.
Avoid using the same descriptive flexfield definition in more than one form. Because a customer can reference any field in their flexfield definition, they may reference a field that exists in one form but not the others.
Key flexfields should use the "ENABLE_LIST_LAMP" LOV, with the Use Validate from List property set to No. Descriptive flexfields do not use an LOV.