How To Fix UJR_EXCEPTION025 - Cannot perform delta-write without duplicate check

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 025

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

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJR_EXCEPTION025 - Cannot perform delta-write without duplicate check ?

  The SAP error message UJR_EXCEPTION025 indicates that there is an issue with the delta write process in the context of SAP's data replication or data warehousing scenarios, particularly when using the SAP Data Warehouse Cloud or SAP BW (Business Warehouse). This error typically arises when the system detects potential duplicate records during a delta write operation, which is meant to update existing records without reprocessing all data.
  
  Cause:
  The error occurs due to the following reasons:
  
  Duplicate Records: The system has identified that the data being processed contains duplicate records that could lead to inconsistencies in the data warehouse.
  Missing or Incorrect Delta Mechanism: The delta mechanism may not be correctly configured, leading to issues in identifying unique records.
  Data Source Issues: The source data may have duplicates that are not being handled properly.
  Incorrect Key Configuration: The key fields used for identifying unique records may not be correctly defined, leading to the system's inability to