How To Fix DMCLG446 - Structure relationship error: Sender structure &1 does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 446

• Message text: Structure relationship error: Sender structure &1 does not exist

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 DMCLG446 - Structure relationship error: Sender structure &1 does not exist ?

  The SAP error message DMCLG446, which states "Structure relationship error: Sender structure &1 does not exist," typically occurs in the context of data modeling or data transfer processes within SAP systems, particularly when working with Data Migration Cockpit (DMC) or similar tools.
  Cause:
  The error indicates that the system is unable to find the specified sender structure (denoted by &1) in the context of the operation being performed. This can happen due to several reasons:
  
  Missing Structure Definition: The sender structure has not been defined or activated in the system.
  Incorrect Configuration: There may be a misconfiguration in the data transfer process or mapping that references a non-existent structure.
  Transport Issues: If the structure was recently transported from another system, it may not have been successfully imported.
  Version Mismatch: The structure may exist in a different version of the system or client.
  
  Solution:
  To resolve the DMCLG446 error, you can follow these steps:
  
  
  Check Structure Definition:
  
  Verify that the sender structure exists in the system. You can do this by navigating to the relevant transaction (e.g., SE11 for Data Dictionary) and checking if the structure is defined.
  
  
  
  Activate the Structure:
  
  If the structure exists but is not activated, activate it. Sometimes, changes to structures require activation to be recognized by the system.
  
  
  
  Review Configuration:
  
  Check the configuration settings for the data transfer process. Ensure that the sender structure is correctly referenced and that there are no typos or incorrect mappings.
  
  
  
  Transport Check:
  
  If the structure was supposed to be transported from another system, check the transport logs to ensure that the transport was successful and that the structure is available in the target system.
  
  
  
  Consult Documentation:
  
  Review any relevant documentation or notes related to the specific data migration or transfer process you are working with. There may be specific prerequisites or steps that need to be followed.
  
  
  
  System Consistency Check:
  
  If you suspect a version mismatch or inconsistency, consider running a consistency check or consulting with your SAP Basis team to ensure that all components are correctly aligned.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the context in which it occurs.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), and ST22 (Dump Analysis) can be useful for troubleshooting.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for the Data Migration Cockpit or the specific module you are working with for any additional insights.
  
  By following these steps, you should be able to identify the cause of the DMCLG446 error and implement a solution to resolve it.