How To Fix DMCLG420 - Field &2 of structure &1 has been added

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 420

• Message text: Field &2 of structure &1 has been added

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 DMCLG420 - Field &2 of structure &1 has been added ?

  The SAP error message DMCLG420 indicates that a field has been added to a structure in the Data Model Change Log (DMCL) and that this change may affect existing data or processes. This message typically arises during data model changes, such as when a new field is introduced to a structure that is already in use.
  Cause:
  
  Data Model Changes: The primary cause of this error is the addition of a new field to a structure that is already defined in the system. This can happen during system upgrades, custom developments, or changes made by SAP notes.
  Incompatibility: The addition of the field may lead to incompatibility with existing data or processes that rely on the previous structure definition.
  
  Solution:
  
  Update Data Model: Review the data model and ensure that any dependent objects (like programs, reports, or function modules) are updated to accommodate the new field.
  Adjust Custom Code: If there are custom developments that reference the structure, you will need to modify the code to handle the new field appropriately.
  Testing: After making the necessary adjustments, conduct thorough testing to ensure that the changes do not introduce any new issues.
  Documentation: Update any relevant documentation to reflect the changes made to the structure and its fields.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional guidance or fixes related to this error.
  Data Dictionary: Review the Data Dictionary (SE11) to understand the structure and the implications of the new field.
  Change Logs: Look into change logs or transport requests to see if the addition of the field was part of a larger change initiative.
  Impact Analysis: Conduct an impact analysis to identify all areas of the system that may be affected by the addition of the new field.
  
  If you continue to experience issues or if the error persists after making the necessary changes, consider reaching out to SAP support for further assistance.