How To Fix RDM_BBY434 - Material &1, unit &2 is assigned more than once on the Buy side

SAP Error Message - Details

• Message type: E = Error

• Message class: RDM_BBY - Bonus Buy: Messages

• Message number: 434

• Message text: Material &1, unit &2 is assigned more than once on the Buy side

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RDM_BBY434 - Material &1, unit &2 is assigned more than once on the Buy side ?

  The SAP error message RDM_BBY434 indicates that a specific material (denoted by &1) and unit of measure (denoted by &2) is assigned more than once on the Buy side. This typically occurs in the context of procurement or purchasing processes within SAP, particularly when dealing with materials and their respective units of measure in purchasing documents or master data.
  Cause:
  
  Duplicate Assignments: The most common cause of this error is that the same material and unit of measure combination has been assigned multiple times in the purchasing documents or in the material master data.
  Configuration Issues: There may be issues in the configuration of the material master or purchasing info records that allow for duplicate entries.
  Data Migration Issues: If data has been migrated from another system or if there have been recent changes to the material master, duplicates may have been inadvertently created.
  
  Solution:
  
  
  Check Material Master Data: 
  
  Go to the material master record for the affected material and check the purchasing views. Ensure that the material is not assigned multiple times with the same unit of measure.
  Use transaction code MM03 to display the material master and review the relevant views.
  
  
  
  Review Purchasing Info Records:
  
  Check the purchasing info records for the material to see if there are multiple entries for the same material and unit of measure. Use transaction code ME13 to display info records.
  
  
  
  Analyze Purchase Orders:
  
  Review any purchase orders or contracts that may reference the material. Ensure that there are no duplicate entries for the same material and unit of measure.
  
  
  
  Data Cleanup:
  
  If duplicates are found, you may need to delete or correct the duplicate entries. This can involve removing unnecessary info records or correcting the material master data.
  
  
  
  Consult with SAP Support:
  
  If the issue persists after checking the above areas, consider reaching out to SAP support for further assistance. They may provide insights specific to your system configuration.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  MM03: Display Material Master
  ME13: Display Purchasing Info Record
  ME23N: Display Purchase Order
  
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP documentation related to material management and purchasing processes for best practices in managing material and unit assignments.
  
  By following these steps, you should be able to identify and resolve the cause of the RDM_BBY434 error in your SAP system.