Data Type

This field is used to assign a particular data type for each user defined field.  

The physical database field is a 128 character text field, however, via the Admin >> Setup >> User Defined Field screen, you can define how a particular user defined field is to be treated.  The current data type options include:

 

 

When specifying a data type, the system will validate that any existing data conforms to the new data type / pick list value set.

Depending on the volume of data in your system, this validation step could take several moments.  Should the system discover that you have non-conforming data, you may find the export/import features helpful for identifying and correcting non-conforming entries (which you will need to correct before re-attempting to change the data type).