What is an MPIN?

Marketing Partner Identification Number. A number created by you when you register in SAM. It is a personal code that allows you to access other government applications such as the Past Performance Information Retrieval System (PPIRS) and SAM. The MPIN acts as your password in these other systems, and you should guard it as such.  You must know your MPIN in order to update your SAM.  If you do not know if you can update it, be sure and write it down.