How To Fix VK409 - Target and source field must match if tables are identical.

VK409 - Overview

• Message type: E = Error

• Message class: VK - Pflege und Bearbeitung von Konditionen

• Message number: 409

• Message text: Target and source field must match if tables are identical.

Self-Explanatory Message

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VK409 - Details

• The SAP error message VK409 ("Target and source field must match if tables are identical") typically occurs in the context of data transfer or mapping between two tables in SAP, particularly when using transaction codes related to pricing or condition records, such as VK11, VK12, or VK13.
  
  Cause:
  This error arises when you are trying to copy or transfer data from one condition table to another, and the fields in the source and target tables do not match in terms of data types, lengths, or structure. The system expects that if the tables are identical, the fields being mapped should also be identical.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Table Structure: Verify that the source and target tables are indeed identical in terms of structure. You can do this by checking the data dictionary (transaction SE11) for both tables to ensure that the fields match in terms of data