Buy4Michigan Help Desk

Buy4Michigan Logo

If you are experiencing difficulties with the Buy4Michigan website, please contact the Buy4Michigan Help Desk (also titled the OFM Help Desk on the phone system), available from 7 a.m. to 6 p.m. EST, Monday through Friday:

  •  By Phone:
    • (517) 284-0540 (Lansing)
    • (888) 734-9749 (Toll-free outside of Lansing)
    • The automated menu will provide a number to push for help with the Buy4Michigan eProcurement system.
  • By Email: SIGMA-Vendor@michigan.gov