How to Display Custom Error Messages in WebADI.

Hi All,

I have developed a package body which will validate the customer details and then load into the staging tables if there is no errors in validation. But if it is errored out, i want to show the error messages in the excel sheet, right now i m using raise_application_error('-20001',message value);

The custom messages are replaced by other messages and displaying in excel sheet.

i mean, the message which i have used in my package body is for ex:- "Invalid Customer Name". But the message which i can see in excel sheet is "Enter a valid customer name"