No load can be built for purchasing organization &1 and plant &2

What causes this issue?

No restriction profile has been maintained for the plant in the
purchasing organization and the automatic purchase order indicator has
not been set.

How to fix this error?

Maintain a restriction profile in the <DS:TRAS.MK02>vendor master</>
for the plant in the purchasing organization and set the automatic
purchase order indicator.

Error message extract from SAP system. Copyright SAP SE.