The store changes in the Unique "StoreID".
Only this method for me was "bug", when I change it in my form for credit purchases online once it rajoutais both a number and then the person did not receive its funding because it was not present in the database.
I owed so through a plugin I created that consistais to change a few things.
The new version of the Exchange store something, so I must re-change the php server part and the part now that I think about it.
Sorry I use a translator x)
The account id field hasn't been changed. It still has the same format and values.