How To Fix WZRE_REUSE008 - Illegal node relationship

SAP Error Message - Details

• Message type: E = Error

• Message class: WZRE_REUSE - Messages

• Message number: 008

• Message text: Illegal node relationship

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message WZRE_REUSE008 - Illegal node relationship ?

  The SAP error message WZRE_REUSE008: Illegal node relationship typically occurs in the context of SAP Workflow or Business Process Management (BPM) when there is an invalid or inconsistent relationship defined between nodes in a workflow or process model.
  
  Cause
  
  Invalid Node Relationship: The error indicates that the relationship between two nodes (steps, tasks, or elements) in a workflow or process model is not allowed. This can happen if:
  
  The node types are incompatible for the relationship defined.
  The workflow or process model has structural inconsistencies.
  There is an attempt to reuse or link nodes in a way that violates the workflow design rules.
  
  
  Reuse of Nodes: When reusing nodes or subprocesses, the system checks if the node relationships are valid. If the reuse leads to an illegal or unsupported relationship, this error is triggered.
  Incorrect Workflow Modeling: For example, connecting a node that should be a start node to a node that cannot logically follow it, or creating circular references that are not allowed.
  
  
  Solution
  
  
  Check Node Types and Relationships:
  
  Review the workflow or process model in the Workflow Builder or BPMN editor.
  Verify that the nodes connected have valid relationships according to SAP workflow rules.
  Ensure that start nodes, end nodes, and intermediate nodes are connected properly.
  
  
  
  Validate Workflow Structure:
  
  Use the workflow validation tools available in SAP to check for inconsistencies.
  Correct any invalid links or node assignments.
  
  
  
  Avoid Illegal Reuse:
  
  If reusing nodes or subprocesses, ensure that the reuse does not violate node relationship constraints.
  Consider redesigning the workflow to avoid illegal node reuse.
  
  
  
  Check for Circular References:
  
  Make sure there are no circular or recursive node relationships that are not supported.
  
  
  
  Consult SAP Documentation and Notes:
  
  Look for SAP Notes related to workflow errors and node relationships.
  Sometimes patches or updates fix known issues with workflow modeling.
  
  
  
  
  Related Information
  
  SAP Workflow Builder: The tool used to design and maintain workflows. Understanding node types and their allowed relationships is crucial.
  Node Types: Start nodes, activity nodes, container nodes, end nodes, etc., each have specific rules for how they can be connected.
  SAP Notes: Search the SAP Support Portal for notes related to WZRE_REUSE008 or workflow node relationship errors.
  Transaction Codes:
  
  SWDD - Workflow Builder
  SWI1 - Workflow Log
  SWU3 - Workflow Customizing
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Error
  WZRE_REUSE008: Illegal node relationship
  
  
  Cause
  Invalid or unsupported relationship between workflow nodes, often due to reuse or modeling errors
  
  
  Solution
  Review and correct node relationships in the workflow; avoid illegal reuse; validate workflow structure
  
  
  Tools
  Workflow Builder (SWDD), Workflow Log (SWI1), Workflow Customizing (SWU3)
  
  
  Additional
  Check SAP Notes and documentation for updates or known issues
  
  
  
  
  If you provide more context (e.g., which transaction or tool you encountered this error in, or a screenshot of the workflow), I can help with more specific guidance.