If you yourself are the supplier of the goods in an order message (when sending a sales order and sending an order confirmation), then Supply Chain Integration now uses the data entered for supplier 99999. Previously, customer 99999 was used.
A customer 99999 and a supplier 99999 are always created during the implementation of Isah. As both of these entities hold your company details, Isah is still sending your company details. You are recommended to check these data if you are already using Supply Chain Integration, to be sure that the correct data are sent.