How To Fix WV278 - The suppliers entered are not valid sources of supply

SAP Error Message - Details

• Message type: E = Error

• Message class: WV - Messages about Sales Price Calculation

• Message number: 278

• Message text: The suppliers entered are not valid sources of supply

What causes this issue?

The source of supply check found that neither the external vendor &V1&
nor the internal vendor &V2& entered are valid sources of supply.
The source of supply key for the material is "&V4&".

System Response

If both an internal and external vendor are entered, the sales price
calculation function checks only whether the vendor entered is valid;
it does not search for a valid vendor.
No calculation could be performed for material &V3&.

How to fix this error?

If necessary, repeat the calculation without entering a vendor. The
system may be able to determine another valid vendor for material &V3&.
Alternatively,check the settings that are relevant to supply source
determination, such as the source of supply key, the purchasing info
records for external procurement, the supplying sites for internal
procurement, and so on.
Links for checking the master data and Customizing settings:
<DS:TRAN.MM43>Display Material Master Data</>
<DS:TRAN.ME1M>Info Records - List Display</>
<DS:TRAS.WB03>Display Plant</>
<DS:TRAN.MK03>Display Vendor</>
<DS:SIMG.SIMG_CFMENUSAPCOMKJ>Reference Purchasing Organization</>

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 WV278 - The suppliers entered are not valid sources of supply ?

  The SAP error message WV278, which states "The suppliers entered are not valid sources of supply," typically occurs in the context of procurement processes, particularly when trying to create or process purchase orders, requests for quotations, or similar documents. This error indicates that the suppliers you are trying to use do not meet the criteria set in the system for valid sources of supply.
  Causes:
  
  Supplier Master Data Issues: The suppliers may not be set up correctly in the system. This could include missing or incorrect information in the supplier master data.
  Status of Supplier: The supplier may be inactive or blocked in the system, preventing them from being used for procurement.
  Purchasing Organization Assignment: The supplier may not be assigned to the purchasing organization that is being used in the transaction.
  Material-Supplier Relationship: The specific material you are trying to procure may not be linked to the supplier in the system.
  Source List: If a source list is maintained for the material, the supplier may not be included in that list.
  Contract or Info Record Issues: If there are contracts or info records in place, the supplier may not be valid for the specific conditions of the purchase.
  
  Solutions:
  
  Check Supplier Master Data: Verify that the supplier is correctly set up in the system. Ensure that all necessary fields are filled out and that the supplier is active.
  Review Supplier Status: Check if the supplier is blocked or inactive. If so, you may need to unblock or reactivate the supplier.
  Verify Purchasing Organization Assignment: Ensure that the supplier is assigned to the correct purchasing organization that you are using in your transaction.
  Check Material-Supplier Relationship: Confirm that the supplier is linked to the material you are trying to procure. You can do this by checking the material master data.
  Update Source List: If a source list is being used, make sure that the supplier is included in the source list for the relevant material.
  Review Contracts and Info Records: Check if there are any existing contracts or info records that might restrict the use of the supplier for the specific material or conditions.
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes such as MK01 (Create Vendor), MK02 (Change Vendor), MK03 (Display Vendor), ME11 (Create Info Record), ME12 (Change Info Record), and ME13 (Display Info Record) to manage supplier data.
  Source List Maintenance: Use transaction code ME01 to create or maintain source lists.
  Material Master Data: Use transaction code MM01, MM02, or MM03 to manage material master data.
  Supplier Evaluation: Regularly evaluate suppliers to ensure they meet the necessary criteria for procurement.
  
  By following these steps, you should be able to resolve the WV278 error and successfully process your procurement transactions.