How To Fix VCH_HL_SOAP002 - The node ID &1 is not unique. Cyclic refernces are not supported.

SAP Error Message - Details

• Message type: E = Error

• Message class: VCH_HL_SOAP -

• Message number: 002

• Message text: The node ID &1 is not unique. Cyclic refernces are not supported.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message VCH_HL_SOAP002 - The node ID &1 is not unique. Cyclic refernces are not supported. ?

  The SAP error message VCH_HL_SOAP002 indicates that there is a problem with the uniqueness of node IDs in a hierarchical structure, typically in the context of a SOAP web service or a similar integration scenario. The error message states that the node ID specified is not unique, which can lead to cyclic references that the system does not support.
  Cause:
  
  Non-Unique Node IDs: The primary cause of this error is that there are multiple nodes in the hierarchy that share the same ID. This can happen due to incorrect data configuration or duplication in the data source.
  Cyclic References: The system has detected a cycle in the hierarchy, which means that a node is indirectly referencing itself, leading to an infinite loop.
  Data Integrity Issues: There may be issues with the data integrity in the source system, where the same node ID is being used for different entities.
  
  Solution:
  
  Check Node IDs: Review the configuration or data source to ensure that all node IDs are unique. You may need to query the database or check the relevant tables to identify duplicates.
  Correct Data Structure: If you find duplicate node IDs, you will need to correct the data structure to ensure that each node has a unique identifier.
  Review Hierarchical Relationships: Examine the relationships between nodes to ensure that there are no cyclic references. This may involve restructuring the hierarchy to eliminate cycles.
  Data Validation: Implement data validation checks to prevent the entry of duplicate node IDs in the future.
  Testing: After making changes, test the integration or service again to ensure that the error is resolved.
  
  Related Information:
  
  SAP Documentation: Refer to SAP's official documentation for more details on hierarchical data structures and SOAP web services.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to inspect the relevant data structures and configurations.
  Debugging: If the issue persists, consider using debugging tools to trace the execution and identify where the non-unique node IDs are being generated or referenced.
  
  If you continue to experience issues after following these steps, it may be beneficial to consult with your SAP support team or a technical consultant who specializes in SAP integrations.