hi you can use cross validation to closely control the creation of new keyflexfield combination & you can maintain a consistent & logical set of keyflexfield combinations that you need to run your organization.cross validation control the combination of values you can create when you enter values for keyflexfield
RE: What is the significance of cross validate segmen...
The Cross-Validate Segments check box in the Key Flexfield segment window((N) Setup>flexfields>Key> Segments) controls the application of cross validation rules. the cross validation rules will only be applicable when this option is checked.
What is the significance of cross validate segments in the Key flexfield structure screen (figure 6)?
Cross validation (also known as cross segment validation) controls the combinations of values you can create when you enter values for key flexfields. A cross validation rule defines whether a value of a particular segment can be combined with specific values of other segments.
Cross validation is different from segment validation which controls the values you can enter for a particular segment.
When a user finishes entering segment values in a flexfield popup window the flexfield checks whether the values make up a valid combination before updating the database. If the user entered an invalid combination a diagnostic error message appears and the cursor returns to the first segment assumed to contain an invalid value.