Established Vendors


Vendors who had been registered in Contract & Payment Express (C&PE)  were converted to SIGMA VSS. All active addresses, banking, and information are in SIGMA VSS. Vendor information from Buy4Michigan was not converted.

Things you need to know:

  • You should claim your account and validate your information.  Step by step instructions are provided on the VSS login page
  • You can establish additional users to maintain information, track payments and respond to bids and grants
  •  You can establish notification preferences for grant and procurement commodities
  • New payments and related payment information are available in SIGMA VSS
  • C&PE no longer available for update