How To Fix W_DSD_01016 - Only one main supplier per material and store is allowed

W_DSD_01016 - Overview

• Message type: E = Error

• Message class: W_DSD_01 - Global message class for DSD

• Message number: 016

• Message text: Only one main supplier per material and store is allowed

What causes this issue?

You attempted to mark more than one vendor as main vendors for a given
material and store at the same time.

System Response

One main vendor only is allowed at the same time for a given material
and store. The main vendor property must be unique.

How to fix this error?

Ensure that the old main vendor is demarked before a new vendor can be
marked as main vendor for the material and store.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message W_DSD_01016 - Only one main supplier per material and store is allowed ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  W_DSD_01016: Only one main supplier per material and store is allowed
  
  
  Cause:
  This warning message occurs when you try to assign more than one main supplier to the same material and store combination in the SAP system. According to the business rules configured in SAP (especially in modules like MM - Materials Management or SD - Sales and Distribution), each material in a particular store can have only one main supplier. The main supplier is typically the preferred or primary vendor responsible for supplying that material to the store.
  
  Explanation:
  
  Material: The product or item in question.
  Store: The physical or logical location (plant, warehouse, or store) where the material is stocked.
  Main Supplier: The primary vendor assigned to supply the material to the store.
  
  If you attempt to assign a second supplier as the main supplier for the same material and store, SAP triggers this