JBO-: Failed to load CustomDatum value at index

This error message is seen in OAF applications.

Please check
1) How many columns you have in ViewObject and corresponding callings in VORowImpl file.
2) Verify the mapping sequence of the columns to the attributes set in VOImpl file.
3) The data types used for attributes in VOImpl file and the respective DB table column.
4) Verify the view attribute sequence in ViewObject.