How to find out any personalization done on a supplie page?

Hi,

There was customization done to our supplier page(banking details). I want to know how it was done and how.

The account type in the banking details page of supplier, there should be LOV(cheking, saving, other) which is a standard functionality. But our page shows a check box. (checked-savings acc, unchecked-checkings acc). But our problem here is what ever bank acc type is given the first time, it stays and can not be changed.

How can I get the original configuration?

How can I fix this issue?

Thanks

RG