How To Fix WRF_WSUBST045 - Substitution proposal rejected; PO &1, item &2, substitution material &3

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 045

• Message text: Substitution proposal rejected; PO &1, item &2, substitution material &3

What causes this issue?

The system rejected the substitution proposal in a customer
implementation of method WRF_SUBST_CHANGE_SUBSTPROPOSAL of the BAdI WRF_
SUBST_BADI_ARTICLE_SUBST.

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?

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_WSUBST045 - Substitution proposal rejected; PO &1, item &2, substitution material &3 ?

  The SAP error message WRF_WSUBST045 indicates that a substitution proposal for a purchase order (PO) item has been rejected. This message typically arises in the context of materials management and inventory management within SAP, particularly when dealing with substitution materials in the context of procurement.
  Cause:
  The error message can be triggered by several factors, including:
  
  Substitution Not Allowed: The substitution material may not be allowed for the specific item in the purchase order due to configuration settings or business rules.
  Material Status: The substitution material might have a status that prevents it from being used (e.g., blocked for procurement).
  Quantity Issues: The quantity of the substitution material may not meet the requirements of the original item.
  Master Data Issues: There may be inconsistencies or missing data in the material master records for either the original or substitution materials.
  Configuration Settings: The settings in the material determination or substitution configuration may not allow for the proposed substitution.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  Check Substitution Settings: Review the configuration settings for material substitution in the SAP system. Ensure that the substitution material is correctly set up and allowed for the specific item.
  Review Material Status: Check the status of the substitution material in the material master. Ensure it is not blocked or restricted for procurement.
  Validate Quantity: Ensure that the quantity of the substitution material is sufficient to meet the requirements of the original item.
  Examine Master Data: Verify that all relevant master data for both the original and substitution materials is complete and accurate.
  Consult Documentation: Review any relevant documentation or guidelines related to material substitution in your organization to ensure compliance with business rules.
  Error Logs: Check the error logs or messages in the system for additional details that may provide more context about why the substitution was rejected.
  Contact Support: If the issue persists, consider reaching out to your SAP support team or consulting with a functional consultant who specializes in materials management.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like MM03 (Display Material), ME23N (Display Purchase Order), or MM02 (Change Material) to investigate the materials involved.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide additional guidance on handling substitution proposals.
  User Exits and BAdIs: If your organization has custom logic implemented, check for any user exits or BAdIs that might affect the substitution process.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to allow the substitution proposal to be accepted.