When a field is created on a form that is linked to a Keyword Type configured to use a Data Set, the Data Set is automatically associated with the field in the Designer and the Data Set is available in the Client to use for value selection. The following is an example of a Keyword Type field associated with a data set in the Designer:
Additionally, if a Keyword Type with a Data Set is configured with the Keyword Must Exist option in the Configuration module, by default the Value must exist property is selected, and the value must exist in the Data Set associated with the Keyword Type in order to save data in the field. If the Value must exist option is unchecked, the value does not have to exist in the Data Set in order to be saved. This will override the Keyword Must Exist setting in the Configuration module.