Stock Transport Order to MRP Area (Type: 3 - Vendor/Subcontractor)

Hello all,

There is this scenario where we want the stocks at a specific MRP Area (Type 3: Vendor/Subcontractor) to be replenishment from the plant MRP area. To get this achieved we did setup the special procurement key with something very much similar to '45' (unlike 45, the customized one generates a stock transport requisition instead of a stock transfer reservation).

When we try to convert this purchase requisition to a purchase order it always results in error:

"T161W: Vendor+subcontracting vendor not allowed for 2-step stock transport order".

I tried to check the sc-vendor indicator in the delivery address tab as suggested in few of the threads on this topic in the forum but am not able to do it - when i set this indicator and hit enter or press the check button it automatically resets. How do i get the error fixed ?

Procurement Key Setup:

Error Message:

Thanks in advance for the help 😊

Regards,

Rahul