We already have an active SAM registration with a UEI, and we have been billing a Michigan county under a human services contract without trouble. Last week the county finance office bounced our invoice and said payment has to go through the state's SIGMA vendor file first, even though the contract is with the county, not a state department.
I started a vendor profile in SIGMA Vendor Self Service. The profile still shows as incomplete on my side, and the county clerk will not resubmit the voucher until it clears. Our EIN and legal name match what we put in SAM.
Is a Michigan SIGMA vendor account a separate registration from SAM, and does a county contract payment still need an active SIGMA vendor record before the payment office will process the invoice?