Assign a vendor number to plant &

What causes this issue?

The vendor number for the plant & could not be determined.

System Response

Material document - tax calculation error.
Tax calculation requires a vendor number. In a transfer plant to
plant, the issuing plant must be assigned to a vendor number.

How to fix this error?

Please assign the plant & to one vendor master in the additional
purchasing data view.

Error message extract from SAP system. Copyright SAP SE.