Bids and Proposals
Effective Monday, July 31, 2017
SIGMA is replacing Contract & Payment Express (C&PE) for registering vendors to receive payments.
SIGMA Vendor Self-Service (VSS) improves how the state works with vendors, payees and grantees, replacing Contract & Payment Express (C&PE) and Buy4Michigan.
If vendors had an active account in the C&PE system on June 30, 2017, they were converted to the user-friendly SIGMA VSS. Additional user information and the benefits of SIGMA VSS, along with instructions on how vendors and other payees can claim and validate their account, are provided in the link below.
- SIGMA VSS: A new way of doing business with the State