You must register and get a SIGMA VSS account to bid on open solicitations. Michigan Vendor Agreement Template is a legal document.INSTRUCTIONS. Read this entire form before you sign it. If you do not complete this agreement, you will be denied access to Michigan Department o. The vendor information forms attached must be completed and returned to the City of Saginaw. Used to request credit from vendors; Fill out vendor information prior to printing. Fill out the form in Microsoft Word Format. DTMB must type on the form, so they can't not accept it as a PDF file. The Purchasing Department reviews all insurance, bond and service related information. Michigan Master Computer Program (MMCP) Vendors: Approved vendors used when purchasing IT commodities not on contract.