How To Fix MPE_RTG_UI226 - Reference assignments not allowed for quantity adjustment

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_RTG_UI - Messages for Routing Maintenance

• Message number: 226

• Message text: Reference assignments not allowed for quantity adjustment

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_RTG_UI226 - Reference assignments not allowed for quantity adjustment ?

  The SAP error message MPE_RTG_UI226: Reference assignments not allowed for quantity adjustment typically occurs in the context of inventory management or material movements in SAP. This error indicates that there is an issue with the way reference assignments are being handled during a quantity adjustment process.
  Cause:
  
  
  Reference Assignment Restrictions: The error usually arises when the system detects that a reference assignment (such as a reference document or material) is not allowed for the specific type of quantity adjustment being performed. This can happen if the system is configured to disallow reference assignments for certain transactions or if the reference document is not compatible with the adjustment being made.
  
  
  Incorrect Document Type: The document type used for the quantity adjustment may not support reference assignments. For example, certain movement types may not allow for reference documents.
  
  
  Configuration Issues: There may be configuration settings in the SAP system that restrict the use of reference assignments for specific inventory transactions.
  
  
  Solution:
  
  
  Check Movement Type: Verify the movement type being used for the quantity adjustment. Ensure that it is appropriate for the transaction and that it allows for reference assignments.
  
  
  Review Configuration: Consult with your SAP configuration team to review the settings related to inventory management and movement types. They can check if there are any restrictions on reference assignments for the specific movement type you are using.
  
  
  Use Direct Quantity Adjustment: If reference assignments are not necessary for your adjustment, consider performing a direct quantity adjustment without referencing another document.
  
  
  Consult Documentation: Review SAP documentation or help resources related to the specific transaction you are trying to perform. This may provide insights into any limitations or requirements for reference assignments.
  
  
  Error Logs: Check the error logs or transaction codes (like SLG1 for application logs) to gather more details about the error. This can help in diagnosing the issue more accurately.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message. There may be patches or updates that resolve known issues.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A (Goods Withdrawal), MB1B (Transfer Posting), or MIGO (Goods Movement) that may be involved in the quantity adjustment process.
  User Roles and Authorizations: Ensure that the user performing the transaction has the necessary authorizations to execute quantity adjustments and reference assignments.
  Training and Documentation: Consider providing training or documentation for users involved in inventory management to help them understand the limitations and proper procedures for quantity adjustments.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with SAP support for further assistance.