How To Fix /MVA/AMR_PM_ERRORS300 - Entries not unique in table &1 for key = &2.

SAP Error Message - Details

• Message type: E = Error

• Message class: /MVA/AMR_PM_ERRORS -

• Message number: 300

• Message text: Entries not unique in table &1 for key = &2.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /MVA/AMR_PM_ERRORS300 - Entries not unique in table &1 for key = &2. ?

  The SAP error message /MVA/AMR_PM_ERRORS300 Entries not unique in table &1 for key = &2 typically indicates that there are multiple entries in a specific database table that share the same key value, which is expected to be unique. This can lead to issues in data processing, as the system cannot determine which entry to use.
  Cause:
  
  
  Data Integrity Issues: The most common cause of this error is data integrity problems, where the uniqueness constraint on a table is violated. This can happen due to:
  
  Incorrect data entry or duplication of records.
  Issues during data migration or import processes.
  Bugs in custom programs or enhancements that manipulate the data.
  
  
  
  Configuration Errors: Sometimes, incorrect configuration settings in the system can lead to unexpected behavior, causing multiple entries to be created for the same key.
  
  
  Solution:
  
  
  Identify Duplicate Entries:
  
  Use transaction codes like SE16 or SE11 to access the relevant table (indicated by &1 in the error message).
  Execute a query to find all entries with the key value specified by &2. This will help you identify the duplicates.
  
  
  
  Data Cleanup:
  
  Once you have identified the duplicate entries, you will need to determine which records are valid and which can be deleted or merged.
  Use appropriate SQL commands or SAP transactions to delete or correct the duplicate entries.
  
  
  
  Review Data Entry Processes:
  
  Investigate how the duplicates were created. If it was due to manual data entry, consider implementing validation checks to prevent future duplicates.
  If the issue arose from a data migration process, review the migration logic to ensure it enforces uniqueness.
  
  
  
  Check Custom Code:
  
  If there are custom programs or enhancements that interact with the table, review the code to ensure it correctly handles uniqueness constraints.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant notes or patches that may address this specific error or provide guidance on handling it.
  
  
  
  Related Information:
  
  Transaction Codes: SE16 (Data Browser), SE11 (Data Dictionary), SE80 (Object Navigator).
  Tables: The specific table causing the issue will be indicated in the error message. You will need to investigate that table for duplicates.
  SAP Community: Consider searching or posting in the SAP Community forums for additional insights or similar experiences from other users.
  
  By following these steps, you should be able to resolve the error and prevent it from occurring in the future.