How To Fix WG451 - PO &1 rejected: different supplier sub-ranges

SAP Error Message - Details

• Message type: E = Error

• Message class: WG - Messages for store order and investment buy

• Message number: 451

• Message text: PO &1 rejected: different supplier sub-ranges

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• What is the cause and solution for SAP error message WG451 - PO &1 rejected: different supplier sub-ranges ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WG451 PO &1 rejected: different supplier sub-ranges
  
  Cause:
  This error occurs when a Purchase Order (PO) is rejected because the supplier number assigned to the PO does not fall within the allowed supplier sub-range(s) defined for the user or the purchasing group. In other words, the system checks whether the supplier number on the PO is within the permitted supplier number ranges assigned to the user or purchasing group, and if it is outside these ranges, the PO is rejected.
  This is typically related to authorization checks or supplier sub-range restrictions configured in SAP to control which suppliers a user or purchasing group can work with.
  
  Explanation:
  
  Supplier sub-ranges are used to restrict access to certain suppliers based on number ranges.
  These restrictions can be set up in customizing or via authorization objects.
  When a user tries to create or process a PO with a supplier outside their allowed sub-range, the system throws this error.
  The message includes the PO number (&1) that was rejected.
  
  
  Solution:
  
  
  Check Supplier Sub-Range Assignments:
  
  Verify the supplier number ranges assigned to the user or purchasing group.
  This can be done in transaction ME51N/ME21N or via customizing.
  
  
  
  Adjust Supplier Sub-Range Settings:
  
  If the supplier should be allowed, update the supplier sub-range assignments to include the supplier number.
  This is usually done in SPRO under:
  
  Materials Management -> Purchasing -> Purchase Order -> Define Supplier Sub-Ranges
  
  
  Or via user authorizations.
  
  
  
  Check User Authorizations:
  
  The authorization object M_BEST_BSA (Purchasing Document Type) or M_LIFNR (Vendor Master Authorization) might restrict supplier ranges.
  Use transaction SU53 after the error to check missing authorizations.
  Adjust roles/authorizations in PFCG to include the required supplier sub-ranges.
  
  
  
  Coordinate with Security/Authorization Team:
  
  If you do not have authorization to change these settings, contact your SAP security team to update your roles.
  
  
  
  Verify Supplier Master Data:
  
  Ensure the supplier number is correct and active.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  ME21N - Create Purchase Order
  ME51N - Create Purchase Requisition
  SU53 - Display Authorization Check
  PFCG - Role Maintenance
  
  
  
  Authorization Objects:
  
  M_LIFNR - Vendor Master Authorization (includes vendor number ranges)
  M_BEST_BSA - Purchasing Document Type Authorization
  
  
  
  SAP Notes / Documentation:
  
  Check SAP Notes related to supplier sub-range restrictions.
  Review SAP Help Portal for "Supplier Sub-Range" and "Authorization Checks in MM".
  
  
  
  
  Summary:
  The error WG451 PO &1 rejected: different supplier sub-ranges means the PO supplier is outside the allowed supplier number ranges for the user or purchasing group. To fix it, verify and adjust supplier sub-range assignments or user authorizations to include the supplier number.
  
  If you need help with specific steps or transactions, feel free to ask!