How To Fix /IWFND/CM_DESIGNTIME118 - Root node '&1' not valid

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWFND/CM_DESIGNTIME -

• Message number: 118

• Message text: Root node '&1' not valid

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 /IWFND/CM_DESIGNTIME118 - Root node '&1' not valid ?

  The SAP error message /IWFND/CM_DESIGNTIME118 with the description "Root node '&1' not valid" typically occurs in the context of SAP Gateway and OData services. This error indicates that the specified root node in the OData service is not recognized or is invalid. Here’s a breakdown of the potential causes, solutions, and related information:
  Causes:
  
  Incorrect Root Node Name: The root node specified in the OData service might be misspelled or does not exist in the data model.
  Service Registration Issues: The OData service may not be properly registered or activated in the SAP Gateway.
  Model Definition Errors: There could be issues in the data model definition, such as missing or incorrectly defined entities.
  Authorization Issues: The user may not have the necessary authorizations to access the specified root node.
  Changes in the Data Model: If the underlying data model has changed (e.g., entities added or removed), the OData service may not reflect these changes.
  
  Solutions:
  
  Check Root Node Name: Verify that the root node name specified in the OData service is correct and matches the entity set defined in the service.
  Service Activation: Ensure that the OData service is activated in the SAP Gateway. You can do this using transaction code /IWFND/MAINT_SERVICE to check the service status.
  Review Data Model: Check the data model definition in the service. Use transaction code /IWFND/MAINT_SERVICE to view the service and ensure that all entities are correctly defined.
  Regenerate the Service: If there have been changes to the underlying data model, consider regenerating the OData service. This can be done using transaction code /IWFND/MAINT_SERVICE and selecting the service to regenerate.
  Check Authorizations: Ensure that the user has the necessary authorizations to access the OData service and the specified root node.
  Debugging: If the issue persists, consider debugging the service to identify where the error is occurring. You can use transaction code /IWFND/ERROR_LOG to check for additional error details.
  
  Related Information:
  
  SAP Gateway Documentation: Refer to the official SAP Gateway documentation for detailed information on OData services and troubleshooting.
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message.
  Community Forums: Engage with the SAP Community or forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the issue related to the error message /IWFND/CM_DESIGNTIME118.