How To Fix /ASU/GENERAL235 - Nodes NODE_ID = & and & do not have a predecessor node

SAP Error Message - Details

• Message type: E = Error

• Message class: /ASU/GENERAL -

• Message number: 235

• Message text: Nodes NODE_ID = & and & do not have a predecessor node

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 /ASU/GENERAL235 - Nodes NODE_ID = & and & do not have a predecessor node ?

  The SAP error message /ASU/GENERAL235 indicates that there is an issue with the node configuration in a process or structure where the specified nodes do not have a predecessor node. This typically occurs in scenarios involving hierarchical data structures, such as in SAP Advanced Planning and Optimization (APO) or other SAP modules that utilize node relationships.
  Cause:
  
  Missing Predecessor Node: The error suggests that the nodes identified by NODE_ID do not have a defined predecessor. In hierarchical structures, each node (except the root) should have a predecessor node that it follows.
  Incorrect Configuration: There may be a misconfiguration in the node relationships, possibly due to manual entry errors or incorrect data imports.
  Data Integrity Issues: The data integrity might be compromised, leading to orphaned nodes that do not connect properly within the hierarchy.
  
  Solution:
  
  Check Node Configuration: Review the configuration of the nodes in question. Ensure that each node has a valid predecessor node defined. This can typically be done in the relevant transaction or configuration area in SAP.
  Update Node Relationships: If you find that the nodes are indeed missing a predecessor, you will need to update the relationships. This may involve assigning a predecessor node to the affected nodes.
  Data Validation: Run data validation checks to ensure that all nodes in the hierarchy are correctly linked. This may involve using specific SAP tools or reports designed for data integrity checks.
  Consult Documentation: Refer to SAP documentation or help resources specific to the module you are working with for detailed instructions on managing node relationships.
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration.
  
  Related Information:
  
  Transaction Codes: Depending on the module, you may need to use specific transaction codes to view or edit node configurations (e.g., /SAPAPO/SDP1 for SAP APO).
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide patches or updates that could resolve underlying issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.