How To Fix CME_DTYPE204 - &: only end node<>end node or node<>node changes are permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: CME_DTYPE - CME Data Type: Checks

• Message number: 204

• Message text: &: only end node<>end node or node<>node changes are permitted

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CME_DTYPE204 - &: only end node<>end node or node<>node changes are permitted ?

  The SAP error message CME_DTYPE204 indicates that there is an issue with the data type changes in the context of a data model or a data structure in SAP. Specifically, the error message states that only certain types of changes are allowed, such as changing an end node to another end node or changing a node to another node. This typically occurs in the context of data modeling, where the structure of the data is defined.
  Cause:
  
  Incompatible Changes: The error usually arises when there is an attempt to change a data type or structure in a way that is not permitted. For example, trying to change a node type to an incompatible type or changing the hierarchy in a way that violates the rules of the data model.
  Data Model Integrity: The integrity of the data model is being compromised by the attempted changes. SAP enforces strict rules to maintain the consistency and integrity of the data structures.
  
  Solution:
  
  Review Changes: Carefully review the changes you are trying to make. Ensure that they comply with the allowed changes as per the SAP data model rules.
  Use Compatible Types: If you need to change a node or end node, ensure that you are only changing it to another compatible type. For example, if you are changing an end node, make sure it is being changed to another end node.
  Consult Documentation: Refer to the SAP documentation or data modeling guidelines for the specific module you are working with. This can provide insights into what types of changes are permissible.
  Rollback Changes: If the changes have already been made and are causing issues, consider rolling back to the previous state before the changes were attempted.
  Testing: After making the necessary adjustments, test the data model to ensure that it functions correctly without triggering the error.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  Community Forums: Engage with SAP community forums or user groups. Other users may have encountered similar issues and can provide insights or solutions.
  SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP Support for assistance. They can provide more detailed guidance based on your specific situation.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.