Dear H Singh,
You can ignore ML91 if you trade material but not service. Check below
prerequisites before you run me59N for the said requisition:
- Automatic PO indicator check for material master
-Automatic PO indicator check for vendor master
-Please check if valid source of supply assigned. It must be unique
like you have contract or fixed vendor and a purchasing org specified
in you PR "source of supply" tab.
-PR subject to release strategy must be released.
- PR is for external procurement.
- If PR from sales order, the qty must be zero as we cannot create PO
refer to partial PR from sales order.
Regards,
ian Wong Loke Foong