How To Fix DMCLG418 - Prim. struct. relationship &1: different DDIC-struct. f. sender/receiver

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 418

• Message text: Prim. struct. relationship &1: different DDIC-struct. f. sender/receiver

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG418 - Prim. struct. relationship &1: different DDIC-struct. f. sender/receiver ?

  The SAP error message DMCLG418 indicates that there is a mismatch between the Data Dictionary (DDIC) structures of the sender and receiver in a primary structure relationship. This typically occurs in the context of data transfer or data mapping between different structures in SAP, such as when using Data Migration Cockpit (DMO) or during data replication processes.
  Cause:
  The error arises when:
  
  The sender and receiver structures are defined differently in the Data Dictionary (DDIC).
  There are discrepancies in the field names, data types, or lengths between the two structures.
  The structures are not compatible due to changes in the data model or configuration.
  
  Solution:
  To resolve the DMCLG418 error, you can follow these steps:
  
  
  Check Structure Definitions:
  
  Go to the Data Dictionary (transaction SE11) and check the definitions of both the sender and receiver structures.
  Ensure that the field names, data types, and lengths match exactly.
  
  
  
  Adjust Structures:
  
  If discrepancies are found, you may need to adjust the structure definitions to ensure compatibility.
  This may involve modifying the sender or receiver structure to align with the other.
  
  
  
  Review Mapping:
  
  If you are using a mapping tool or process, review the mapping configuration to ensure that it correctly reflects the structure definitions.
  
  
  
  Transport Changes:
  
  If changes were made to the structures in a development environment, ensure that these changes are transported to the relevant environments (e.g., quality, production).
  
  
  
  Testing:
  
  After making the necessary adjustments, perform tests to ensure that the data transfer or mapping works as expected without errors.
  
  
  
  Consult Documentation:
  
  Review any relevant SAP documentation or notes related to the specific structures you are working with, as there may be known issues or additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Module) may be useful for checking the structures and related function modules.
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific structures or processes you are working with.
  Data Migration Cockpit: If you are using the Data Migration Cockpit, refer to the documentation for best practices and troubleshooting tips.
  
  By following these steps, you should be able to identify and resolve the cause of the DMCLG418 error in your SAP system.