/IWFND/CM_DESIGNTIME120 - Node type '&1' not supported for business objects; node: '&2'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DESIGNTIME -

• Message number: 120

• Message text: Node type '&1' not supported for business objects; node: '&2'

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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AnswerBot

• What is the cause and solution for SAP error message /IWFND/CM_DESIGNTIME120 - Node type '&1' not supported for business objects; node: '&2' ?

  The SAP error message /IWFND/CM_DESIGNTIME120 indicates that there is an issue with the node type being used in the context of a business object in the SAP Gateway framework. This error typically arises when the system encounters a node type that is not supported for the specific business object you are working with.
  Cause:
  
  Unsupported Node Type: The error suggests that the node type specified (represented by &1) is not compatible with the business object (represented by &2). This could happen if the node type is not defined correctly in the service or if it is not allowed for the specific business object.
  Model Configuration Issues: There may be issues in the OData service model configuration, such as incorrect definitions or mappings.
  Version Mismatch: If there are discrepancies between the versions of the service or the underlying data model, it could lead to this error.
  Custom Implementations: If there are custom implementations or extensions that are not correctly defined, they may lead to unsupported node types.
  
  Solution:
  
  Check Node Type Definitions: Review the definitions of the node types in the service. Ensure that the node type being referenced is valid and supported for the business object in question.
  Review OData Service Configuration: Go to the SAP Gateway Service Builder (transaction code SEGW) and check the service configuration. Ensure that all entities and associations are correctly defined.
  Regenerate the Service: If changes were made to the model, regenerate the service to ensure that the changes are reflected. You can do this by right-clicking on the service in the Service Builder and selecting "Regenerate".
  Check for Custom Code: If there is custom code involved, review it for any issues that might lead to unsupported node types. Ensure that any custom logic adheres to the expected structure of the OData service.
  Test with Standard Objects: If possible, test the service with standard business objects to see if the issue persists. This can help isolate whether the problem is with the specific business object or the service configuration itself.
  Consult Documentation: Refer to SAP documentation or community forums for any known issues or updates related to the specific version of SAP Gateway you are using.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SEGW (Service Builder), /IWFND/MAINT_SERVICE (Manage Services), and /IWFND/ERROR_LOG (Error Log) for troubleshooting.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.