How To Fix DMCLG159 - Source and target objects cannot be the same

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 159

• Message text: Source and target objects cannot be the same

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 DMCLG159 - Source and target objects cannot be the same ?

  The SAP error message DMCLG159, which states "Source and target objects cannot be the same," typically occurs in the context of data migration or data transfer processes within SAP systems, particularly when using tools like Data Migration Cockpit (DMC) or similar data handling functionalities.
  Cause:
  This error arises when a user attempts to perform an operation where the source and target objects are mistakenly set to the same entity. For example, if you are trying to copy or move data from one table to another but inadvertently specify the same table as both the source and target, the system will throw this error to prevent data corruption or unintended overwrites.
  Solution:
  To resolve this error, follow these steps:
  
  
  Check Source and Target Configuration: Review the configuration settings for your data migration or transfer process. Ensure that the source and target objects are distinct and correctly specified.
  
  
  Modify the Data Transfer Settings: If you find that the source and target are indeed the same, change the target object to a different one that is appropriate for your data operation.
  
  
  Validate Object Names: Double-check the names of the source and target objects to ensure there are no typographical errors that might lead to confusion.
  
  
  Review Documentation: Consult the relevant SAP documentation or help resources for the specific tool you are using to ensure you are following the correct procedures for data migration.
  
  
  Test with Sample Data: If possible, run a test migration with a small set of data to confirm that the configuration is correct and that the error does not occur.
  
  
  Related Information:
  
  SAP Notes and Knowledge Base Articles: Check SAP's support portal for any notes or articles related to DMCLG159 for additional context or updates.
  Data Migration Cockpit (DMC): Familiarize yourself with the functionalities and limitations of the DMC, as it may provide insights into how to properly configure your data migration tasks.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By ensuring that the source and target objects are distinct and correctly configured, you should be able to resolve the DMCLG159 error and proceed with your data migration or transfer tasks successfully.