How To Fix WRF_WSUBST066 - Inventory check not possible for subst. mat. &1 at DC &2

SAP Error Message - Details

• Message type: E = Error

• Message class: WRF_WSUBST - Article Substitution: Messages Central Determination Logic

• Message number: 066

• Message text: Inventory check not possible for subst. mat. &1 at DC &2

What causes this issue?

If the inventory check is active, the system can only perform an
inventory check at the DC for a substitution material if <ZH>
quantity-based</> inventory management is performed there for the
material.

System Response

The system does not run an inventory check for value-based inventory
management or inventory management at merchandise category level.
In this case, the system behaves as if the inventory check were
deactivated.

How to fix this error?

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

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 WRF_WSUBST066 - Inventory check not possible for subst. mat. &1 at DC &2 ?

  The SAP error message WRF_WSUBST066 indicates that an inventory check is not possible for a substitute material at a distribution center (DC). This error typically arises in the context of materials management and inventory management within the SAP system, particularly when dealing with substitute materials in the SAP Advanced Planning and Optimization (APO) module or in the SAP ERP system.
  Cause:
  The error can occur due to several reasons, including:
  
  
  Material Not Available: The substitute material (&1) may not be available in the specified distribution center (&2). This could be due to stock levels being zero or negative.
  
  
  Incorrect Configuration: There may be issues with the configuration of the substitute materials in the system. For example, the substitute material may not be properly defined or linked to the main material.
  
  
  Plant/Storage Location Issues: The distribution center may not be set up correctly in relation to the plant or storage location where the substitute material is supposed to be stored.
  
  
  Master Data Issues: There could be inconsistencies or missing data in the material master records for either the main or substitute materials.
  
  
  Inventory Management Settings: The settings in inventory management may not allow for the checking of substitute materials under certain conditions.
  
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Material Availability:
  
  Verify that the substitute material (&1) exists in the inventory of the specified distribution center (&2).
  Use transaction codes like MMBE (Stock Overview) to check the stock levels.
  
  
  
  Review Configuration:
  
  Ensure that the substitute material is correctly configured in the system. Check the material master data for both the main and substitute materials.
  Use transaction code MM02 to review and edit the material master data.
  
  
  
  Check Plant and Storage Location:
  
  Confirm that the distribution center is correctly assigned to the relevant plant and storage location.
  Ensure that the substitute material is assigned to the correct plant.
  
  
  
  Examine Master Data:
  
  Look for any inconsistencies in the material master records. Ensure that all necessary fields are filled out correctly.
  
  
  
  Inventory Management Settings:
  
  Review the inventory management settings to ensure that they allow for the checking of substitute materials.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific details related to the error message and its context.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MMBE (Stock Overview), MM02 (Change Material), and MD04 (Stock/Requirements List) for troubleshooting.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address the issue.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.