e.g. CreatePrimaryItem on the Data Mapping by default there are zero records for the ExtendedFieldList. This is an array and so you right click on the extenedFieldList[ ] and select "Add Array Record".
If there is a field with a LOGICAL name of "Description", then any length settings for this field are applied to the system Description field When using CreatePrimaryItem (or any of the create/update calls), the "Details" field (urn:Description) will be truncated according to the field with logical name "Description" - in this case urn:title. If the field with a logical name of "Description" has its logical name changed to anything else, the problem goes away.
