How To Fix MM364 - Duplicate entries for parameter &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MM - Messages for material master maintenance and Customizing

• Message number: 364

• Message text: Duplicate entries for parameter &1

What causes this issue?

Parameter &V1& contains records with a duplicate key.

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?

Delete the records that have a duplicate key in parameter &V1&, then
call BAPI_MATERIAL_SAVEREPLICA again.

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 MM364 - Duplicate entries for parameter &1 ?

  The SAP error message MM364, which states "Duplicate entries for parameter &1," typically occurs in the Materials Management (MM) module when there are duplicate entries in the configuration or master data that the system is trying to process. This can happen in various contexts, such as when dealing with purchasing info records, material master data, or vendor master data.
  Cause:
  
  Duplicate Master Data: There may be duplicate entries in the material master, vendor master, or purchasing info records.
  Configuration Issues: The system configuration may allow for duplicate entries in certain parameters, leading to conflicts.
  Data Migration Issues: If data was migrated from another system, it may have introduced duplicates that were not present in the original system.
  User Input Errors: Users may inadvertently create duplicate entries while entering data.
  
  Solution:
  
  
  Identify Duplicates:
  
  Use transaction codes like MM03 (Display Material), ME13 (Display Info Record), or MK03 (Display Vendor) to check for duplicates.
  You can also run reports or queries to identify duplicate entries in the relevant tables.
  
  
  
  Delete or Merge Duplicates:
  
  If duplicates are found, you can delete the unnecessary entries or merge them if applicable.
  Ensure that you have the necessary authorizations to make changes to master data.
  
  
  
  Check Configuration:
  
  Review the configuration settings in the relevant areas (e.g., purchasing, inventory management) to ensure that they are set up correctly to prevent duplicates.
  Consult with your SAP Basis or configuration team if necessary.
  
  
  
  Data Cleansing:
  
  If the issue is due to data migration, consider performing a data cleansing exercise to remove duplicates and ensure data integrity.
  
  
  
  User Training:
  
  Provide training to users on how to properly enter data to avoid creating duplicates in the future.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing master data, such as MM01 (Create Material), ME11 (Create Info Record), and MK01 (Create Vendor).
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  Documentation: Review SAP documentation for best practices in managing master data and preventing duplicates.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or reach out to SAP support for further assistance.