Hello sir, I am very grateful for your posts, it helps me a lot. I have one question: In my application, I use the data load wizard for uploading data. I want to adjust the content in the error column of the data load result page in the data load wizard progress so that when the user sees the error, they will understand what it is. For example, when reporting a constraint error, if the default, apex will display "ORA-00001: unique constraint (...) violated" I want to replace it with my message is"Duplicated data, check again." and other errors. If it is the default, we can not adjust it so do you have any solution for this problem? THANKS, A LOT.