How To Fix DMC_RT_MSG625 - &1 contains records with duplicate keys:

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_MSG - DMC: Runtime Object Messages

• Message number: 625

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

Check whether there is any typo in sheet &V1&. Remove records with
duplicate keys.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_MSG625 - &1 contains records with duplicate keys: ?

  The SAP error message DMC_RT_MSG625 indicates that there are records in your data that contain duplicate keys. This typically occurs during data replication or data transfer processes, such as when using SAP Data Management or SAP Data Services. The error suggests that the system has encountered multiple records that share the same key, which violates the uniqueness constraint expected by the target system.
  Cause:
  
  Duplicate Records: The source data contains multiple entries with the same key value. This could be due to data entry errors, issues in the data extraction process, or problems in the source system.
  Incorrect Data Mapping: The mapping configuration may not be set up correctly, leading to the same key being generated for different records.
  Data Integration Issues: If data is being pulled from multiple sources, there may be overlaps in the key values that are not being handled properly.
  
  Solution:
  
  
  Identify Duplicate Records:
  
  Review the source data to identify the records that are causing the duplication. You can use SQL queries or data profiling tools to find duplicates based on the key fields.
  
  
  
  Data Cleansing:
  
  Remove or consolidate duplicate records in the source data. This may involve:
  
  Deleting unnecessary duplicates.
  Merging records if they contain complementary information.
  Correcting data entry errors.
  
  
  
  
  
  Adjust Data Mapping:
  
  Check the data mapping configuration in your data integration tool. Ensure that the key fields are correctly defined and that there are no overlaps in the key values.
  
  
  
  Implement Data Validation:
  
  Before loading data into the target system, implement validation checks to ensure that no duplicates exist. This can be done through data quality checks or by using ETL (Extract, Transform, Load) processes.
  
  
  
  Use Unique Constraints:
  
  If applicable, enforce unique constraints in the target database to prevent duplicates from being loaded in the future.
  
  
  
  Testing:
  
  After making changes, test the data load process again to ensure that the error does not occur.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Data Management or Data Services for more detailed information on handling data errors.
  Data Quality Tools: Consider using data quality tools that can help identify and resolve duplicates before they reach the target system.
  Support Community: Engage with the SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the DMC_RT_MSG625 error and ensure that your data is clean and ready for processing.