How To Fix SWP090 - Node type '&1' unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: SWP - WFM: Messages

• Message number: 090

• Message text: Node type '&1' unknown

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 SWP090 - Node type '&1' unknown ?

  The SAP error message SWP090, which states "Node type '&1' unknown," typically occurs in the context of SAP Workflow. This error indicates that the system has encountered a node type that it does not recognize or that is not defined in the workflow configuration.
  Causes:
  
  Incorrect Node Type: The workflow definition may reference a node type that does not exist or is misspelled.
  Missing Custom Node: If the workflow uses a custom node type that has not been properly defined or activated in the system.
  Transport Issues: If the workflow was transported from another system and the necessary node types were not included in the transport.
  Version Mismatch: The workflow might be designed for a different version of SAP where the node type was valid but is no longer available in the current version.
  
  Solutions:
  
  Check Workflow Definition: Review the workflow definition in transaction SWDD (Workflow Builder) to ensure that all node types are correctly defined and spelled.
  Activate Custom Nodes: If the workflow uses custom node types, ensure that they are properly defined and activated in the system.
  Transport Objects: If the workflow was transported, check the transport request to ensure that all necessary objects, including custom node types, were included.
  Update Workflow: If the workflow is outdated, consider updating it to use the current node types available in your version of SAP.
  Consult Documentation: Refer to SAP documentation or notes related to the specific node type to understand its requirements and ensure it is correctly implemented.
  
  Related Information:
  
  
  Transaction Codes: 
  
  SWDD: Workflow Builder for creating and modifying workflows.
  SWI1: Work Item Selection for monitoring workflow instances.
  SWI2_FREQ: For analyzing workflow instances and their statuses.
  
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific node type or workflow functionality.
  
  
  Debugging: If the issue persists, consider debugging the workflow to trace where the error occurs and gather more context about the node type in question.
  
  
  By following these steps, you should be able to identify the cause of the SWP090 error and implement a solution to resolve it.