No master record exists for supplier

Hi folks, I created BP (000000, FLVN00, FLVN01) each criteria entered and succeesfully received BP number.
However When I was trying to make PO It showing mistake as  "No maestro grounds exists for supplier for xxxxxx". mistake connection no- 06101. 
Please counsel maine however to resoluteness this issue.
MM (Materials Management) SAP S/4HANA concern partner