SAP - Sub-contract PO's and serialised materials

[vfrmark]

Hi
We send serialised components back to suppliers for repairs. We define the item in the PO as a sub-contract item and despatch the item back to the vendor via a 541 mvt. Upon receipt (mvt 101) a 543 mvt is generated automatically to book the component back into the stock.

My problem is that the system seems to be designed to only work if you despatch a different serial no. to the item being received - it will not allow the receipt of material if it is the same serial No. as that despatched. The problem seems to be that the sub-contract routine consumes the material despatched after the material received back is book in.

So does anyone have an idea how to receive back the same serial No. as that despatched in a sub contact PO? Alternatively is Sub-contract the correct item category to send parts back to a supplier for repair?

thanks - Mark

 

[Kershul]

I am far from being an MM expert. But I noticed that we use movement types 343 and 344 to do what you do. Maybe try those instead?

 

[vfrmark]

hi,
343/344 are moving stock from unrestricted stock to blocked stock. which is fine if all you want to do is prevent MRP from seeing the stock and the user thinking that the can use it - nice simple way of coping with the issue.

The problem is that I need to provide tracability - so I have to switch on serialisation. If we then send a item to be repaired via a PO that is a subcontract (one that we can attach materials to)we are unable to receive the same serial no item as that sent for repair.

The subcontract PO would normally be used for sending out 2 widgets with the PO and the supplier builds me a "Thingey" using the 2 widgets in the construction.

We are using it to send out a broken "Thingey" and getting the supplier to repair and return it. Hence when you received the "Thingey" from the supplier and book it in the system then backflushs the components out as you must have consumed them in making the "Thingey".
My problem is this 'Backflushing' occurs after you book the "Thingey" in so at the time of booking the "Thingey" in, the component that I sent for repair is still in vendors stock and therefore cannot be received as a serialised part cannot be in two places at once!

There must be companies using SAP that send serialised items to vendors for repairs and have to cope with simular problems.

Will keeep trying - Mark

 

[pppi]

You might want to try using the repairable item functionality with SAP Plant maintenance. if not use movement type 541 and enter the serial number as batch number. this will also allow mrp to view the stock at subcontractor if required. to bring it back you reverse the movement type.