How To Fix UJO_WB_EXCEPTION025 - Cannot perform delta-write without duplicate check

SAP Error Message - Details

• Message type: E = Error

• Message class: UJO_WB_EXCEPTION - Message Class for Write-Back

• Message number: 025

• Message text: Cannot perform delta-write without duplicate check

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJO_WB_EXCEPTION025 - Cannot perform delta-write without duplicate check ?

  The SAP error message UJO_WB_EXCEPTION025 indicates that there is an issue with performing a delta write operation in the context of SAP Data Services or SAP BW (Business Warehouse) when a duplicate check is required but not performed. This error typically arises in scenarios where data is being loaded into a target system, and the system needs to ensure that no duplicate records are being inserted.
  Cause:
  The error can occur due to several reasons:
  
  Duplicate Records: The data being processed contains duplicate records that violate the uniqueness constraints of the target data store.
  Missing Duplicate Check Configuration: The delta write operation is configured to check for duplicates, but the necessary settings or configurations for the duplicate check are not properly set up.
  Data Quality Issues: The source data may have inherent quality issues, such as missing keys or incorrect data formats, leading to duplicates being detected during the delta write process.
  
  Solution:
  To resolve the UJO_WB_EXCEPTION025 error, you can take the following steps:
  
  
  Check for Duplicates:
  
  Review the source data for duplicates. You can use SQL queries or data profiling tools to identify and eliminate duplicate records before the delta write operation.
  
  
  
  Configure Duplicate Check:
  
  Ensure that the duplicate check settings are correctly configured in your data flow or job. This may involve setting up the appropriate keys and constraints in the target data store.
  
  
  
  Adjust Delta Write Settings:
  
  If the duplicate check is not necessary for your use case, you may consider adjusting the delta write settings to bypass the duplicate check. However, this should be done with caution, as it may lead to data integrity issues.
  
  
  
  Data Cleansing:
  
  Implement data cleansing processes to ensure that the data being loaded is free from duplicates and adheres to the required data quality standards.
  
  
  
  Review Logs and Documentation:
  
  Check the logs for more detailed error messages that may provide additional context on the issue. Review SAP documentation for any specific configurations related to delta writes and duplicate checks.
  
  
  
  Testing:
  
  After making the necessary changes, test the data load process in a development or test environment to ensure that the error is resolved before deploying to production.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the specific error message for any patches or updates that may address known issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Documentation: Refer to the official SAP documentation for Data Services or BW for best practices on handling delta writes and managing duplicates.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.