How To Fix GU906 - The target table already contains data

GU906 - Overview

• Message type: E = Error

• Message class: GU - FI-SL utilities

• Message number: 906

• Message text: The target table already contains data

What causes this issue?

The conversion cannot be performed because the target table already
contains data.

How to fix this error?

Since the target table may not contain any data for the conversion, you
must first delete the data in the target table (Customizing).

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message GU906 - The target table already contains data ?

  The SAP error message GU906, "The target table already contains data," typically occurs during data transfer processes, such as when using the Data Transfer Workbench (DTW) or during data migration activities. This error indicates that the target table in the SAP system already has existing records, which conflicts with the operation you are trying to perform (e.g., inserting new records).
  Causes:
  
  Existing Data: The target table already contains records that conflict with the data you are trying to insert.
  Primary Key Violations: The data you are trying to insert may have primary key values that already exist in the target table.
  Data Transfer Settings: The settings or configurations in the data transfer process may not be set to allow for appending data to existing records.
  
  Solutions:
  
  
  Check Existing Data: Before performing the data transfer, check the target table to see what data already exists. You can use transaction codes like SE11 (Data Dictionary) or SE16 (Data