Symptom
You are trying to order the purchase order document however you get an error message.
Error - Only one proposed supplier is allowed; Seller or supplier missing
Environment
SAP Business ByDesign
Reproducing the Issue
- Go to Purchase Requests and Orders work center
- Go to Purchase Orders view
- Select the relevant Purchase Order
- Select Edit button
- Click on Check button and error appears
Cause
Error is only reproducible when adding supplier first, because the Product already has a supplier maintained & will be automatically determined. (Source of supply maintained e.g. a Contract or List Price or fixed source of supply) So when a supplier has already been entered manually, and the system attempts to determine the supplier from source of supply again on entering product details which has list price/contract etc, there is already an entry in the backend system and hence error occurs. In addition, the supplier has been added and deleted multiple times in the purchase order and hence the inconsistency occurs.
Resolution
You can remove the supplier or product and reenter the data in the purchase order. In case if error still persists, we strongly suggest you to Delete the purchase order as it is in In Preparation status. And create a new purchase order with reference to purchase request.
See Also
3079794 - Error in Purchase Request : Only one supplier permitted
Keywords
Only one proposed supplier is allowed; Seller or supplier missing; , KBA , SRD-SRM-PRO , Purchase Requests and Orders , Problem