SAP Mail in German Language

Hi,

I tried to delete a shopping cart in SRM. But as the PO is already created in back end; system didn't allow it and send below mail.

Subject: Interner Fehler beim Löschen

Einkaufskorbzeile konnte nicht gelöscht werden Legal Database and info service fee

Schlüssel Backend-Obj: 8001974118

Wenden Sie sich an Ihren Systemverwalter.

I understand this is a auto generated mail which gets trigger when a deletion of record from database fails in SAP.

The question is why it is in German? Mu User ID language is English everywhere. What is to be done and where to get it changed to engl