How To Fix WSOS007 - Supply source key for material & and plant & not found

SAP Error Message - Details

• Message type: E = Error

• Message class: WSOS - Retail Supply Source Determination

• Message number: 007

• Message text: Supply source key for material & and plant & not found

What causes this issue?

The system cannot determine the supply source key for material & and
plant &.

System Response

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

How to fix this error?

Maintain the supply source key in the plant data for the material or in
the general material data.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WSOS007 - Supply source key for material & and plant & not found ?

  Certainly! Here's a detailed explanation for the SAP error message WSOS007: "Supply source key for material & and plant & not found":
  
  Error Message
  WSOS007: Supply source key for material & and plant & not found
  
  Cause
  This error occurs when the system tries to determine the supply source for a material in a specific plant but cannot find any valid supply source key (also known as source list entry) for that material and plant combination.
  In SAP, the source list defines approved sources of supply for a material in a plant. If the system is configured to check the source list during procurement or production processes, and no valid source is found, this error is triggered.
  Common scenarios causing this error:
  
  No source list entry exists for the material and plant.
  The source list entry exists but is not valid for the current date (validity period expired or not yet valid).
  The source list entry is blocked or flagged as not usable.
  The system is set to enforce source list checks (e.g., in purchasing or MRP settings).
  
  
  Solution
  To resolve the WSOS007 error, follow these steps:
  
  
  Check the Source List for the Material and Plant:
  
  Transaction: ME01 (Create Source List) or ME03 (Display Source List)
  Enter the material and plant.
  Verify if a source list entry exists.
  If no entry exists, create a new source list entry with the appropriate vendor and validity dates.
  
  
  
  Verify Validity Period:
  
  Ensure the source list entry is valid for the current date.
  Adjust the validity dates if necessary.
  
  
  
  Check the Status of the Source List Entry:
  
  Make sure the source list entry is not blocked or flagged as deleted.
  If blocked, unblock or create a new valid entry.
  
  
  
  Check System Settings:
  
  If the system is enforcing source list checks, and you want to bypass this, you can adjust the settings in:
  
  Material Master (Purchasing view) - Source list indicator.
  Purchasing Info Record.
  MRP or Purchasing parameters.
  
  
  However, bypassing source list checks is generally not recommended unless justified.
  
  
  
  Run MRP or Procurement Process Again:
  
  After correcting the source list, rerun the process that triggered the error.
  
  
  
  
  Related Information
  
  Source List (ME01/ME03): The source list is a master data object that specifies approved vendors for a material in a plant, including validity periods and special flags.
  Material Master Purchasing View: The "Source list" indicator in the material master controls whether the system checks the source list during procurement.
  Purchasing Info Record: Links material and vendor, sometimes used in conjunction with source lists.
  MRP (Material Requirements Planning): If MRP is set to check source lists, missing entries can cause this error.
  SAP Notes: Check SAP OSS notes for any specific patches or updates related to WSOS007.
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  No valid source list entry found for material & plant combination.
  
  
  Solution
  Create or update source list entry with valid vendor and validity dates (ME01/ME03).
  
  
  Check
  Validity period, block status, system settings enforcing source list checks.
  
  
  Related Tcodes
  ME01 (Create Source List), ME03 (Display Source List), MM02 (Change Material Master).
  
  
  
  
  If you need help with the exact steps to create or update a source list entry, let me know!