How To Fix CN226 - Relationship type & could not be converted to the external format

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 226

• Message text: Relationship type & could not be converted to the external format

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 CN226 - Relationship type & could not be converted to the external format ?

  The SAP error message CN226, which states "Relationship type & could not be converted to the external format," typically occurs in the context of project management or when dealing with network activities in SAP. This error indicates that there is an issue with the relationship type defined in the project or network that cannot be properly converted or interpreted by the system.
  Causes:
  
  Invalid Relationship Type: The relationship type specified may not be valid or recognized by the system.
  Configuration Issues: There may be configuration issues in the project management settings or in the relationship types defined in the system.
  Data Inconsistencies: There could be inconsistencies or corruption in the data related to the project or network activities.
  Missing Customization: If the system has been customized, there may be missing or incorrect settings related to relationship types.
  
  Solutions:
  
  Check Relationship Type: Verify that the relationship type being used is valid and correctly defined in the system. You can do this by checking the configuration settings in the project management module.
  Review Customizations: If your SAP system has been customized, review the customizations related to project management and relationship types to ensure they are correctly set up.
  Data Consistency Check: Perform a data consistency check to identify any inconsistencies or errors in the project or network data. This can often be done using transaction codes like CNO1 or CNO2.
  Update or Correct Data: If you find any invalid or incorrect data, update or correct it as necessary.
  Consult Documentation: Refer to SAP documentation or help resources for specific details about the relationship types and their configurations.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder) or CN41 (Network Overview) to help navigate and troubleshoot project-related issues.
  SAP Notes: Check for any SAP Notes related to error CN226, as they may provide specific fixes or patches for known issues.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the cause of the CN226 error and implement a solution to resolve it.