How To Fix /SMB/CM_CONVERSION003 - Import table &1 contains records with duplicate keys

SAP Error Message - Details

• Message type: E = Error

• Message class: /SMB/CM_CONVERSION -

• Message number: 003

• Message text: Import table &1 contains records with duplicate keys

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SMB/CM_CONVERSION003 - Import table &1 contains records with duplicate keys ?

  The SAP error message /SMB/CM_CONVERSION003 indicates that there are records in the import table that contain duplicate keys. This typically occurs during data import processes, such as when using the SAP Data Migration tools or during data uploads via LSMW (Legacy System Migration Workbench) or other data transfer methods.
  Cause:
  
  Duplicate Records: The most common cause is that the data being imported contains multiple entries with the same key fields. This could be due to errors in the source data or issues during data extraction.
  Incorrect Mapping: If the mapping of fields is not done correctly, it may lead to the same key being generated for different records.
  Data Preparation Issues: If the data was not properly cleaned or deduplicated before the import, it can lead to duplicates.
  
  Solution:
  
  
  Identify Duplicates: 
  
  Check the source data for duplicates. You can use tools like Excel or SQL queries to identify records with the same key.
  Ensure that the key fields defined in the import table are unique.
  
  
  
  Remove or Consolidate Duplicates:
  
  If duplicates are found, decide whether to remove them or consolidate the data into a single record, depending on the business requirements.
  Ensure that the final dataset adheres to the unique constraints of the target table.
  
  
  
  Adjust Mapping:
  
  Review the mapping of fields in your data import configuration to ensure that they are correctly set up to avoid generating duplicate keys.
  
  
  
  Test Import with Sample Data:
  
  Before performing a full import, test the import process with a smaller subset of data to ensure that the issue is resolved.
  
  
  
  Use SAP Tools:
  
  If you are using LSMW or other SAP tools, make sure to utilize the built-in features for handling duplicates, if available.
  
  
  
  Related Information:
  
  Key Fields: Understand which fields are considered key fields in the target table. This information can usually be found in the data dictionary (SE11) or by consulting the technical documentation for the specific module you are working with.
  Data Quality: Implement data quality checks in your data preparation process to minimize the chances of duplicates in future imports.
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or solutions related to this error message.
  
  By following these steps, you should be able to resolve the /SMB/CM_CONVERSION003 error and successfully import your data into SAP.