How To Fix DMC_GENERAL188 - Confirm duplicate target values

DMC_GENERAL188 - Overview

• Message type: E = Error

• Message class: DMC_GENERAL - MWB: General Messages

• Message number: 188

• Message text: Confirm duplicate target values

Self-Explanatory Message

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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 DMC_GENERAL188 - Confirm duplicate target values ?

  The SAP error message DMC_GENERAL188 ("Confirm duplicate target values") typically occurs in the context of data management and data migration processes, particularly when using SAP Data Management tools like SAP Data Intelligence or SAP Data Services. This error indicates that there are duplicate values being attempted to be loaded into a target field that is expected to have unique values.
  
  Cause:
  
  Duplicate Data: The primary cause of this error is the presence of duplicate records in the source data that are being loaded into a target table or dataset that has a unique constraint on one or more fields.
  Data Model Constraints: The target table may have constraints (like primary keys or unique indexes) that prevent the insertion of duplicate values.
  Incorrect Mapping: There may be an issue with how the data is being mapped from the source to the target, leading to unintended duplicates.
  
  
  Solution:
  
  
  Identify Duplicates: 
  
  Review the source data to identify any duplicate