Hi Sean,
Please follow the steps below as shown in screen shot -
1. GO to your Company code Node or Plant node. You can maintain the location either of this level.
2. Double click on Company code Node --> Go to Extended attribute tab as shown below.
Pre condition - Plant should be replicated successfully.
Input the correct Source system & Company Code & Plant and Press enter. It will automatically POPs up the Partner Id. Maintain one by one if you have more than One plants.
3. Save it and then again Try to SHOP.
Hope it will work this time
THanks,
From RBEI,
Snehal