How To Fix 1X196 - The displayed structure contains unassignable nodes

SAP Error Message - Details

• Message type: E = Error

• Message class: 1X - General hierarchy maintenance tool message

• Message number: 196

• Message text: The displayed structure contains unassignable nodes

What causes this issue?

Unassignable nodes are nodes which refer to a sibling node which is
not/no longer in the structure. Unassignable nodes are usually nodes
with an enhancement ID which refers to a sibling node without an
enhancement ID. This sibling node has probably been deleted.

System Response

The system can no longer uniquely determine where the unassignable
nodes are to be displayed, so they are displayed as the last nodes at
their level.

How to fix this error?

Reassign unassigned nodes. Contact the person responsible for the
enhancement ID if necessary.
You can find unassignable nodes in the structure with the 'Position on
Unassignable Nodes' function.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 1X196 - The displayed structure contains unassignable nodes ?

  The SAP error message 1X196 ("The displayed structure contains unassignable nodes") typically occurs in the context of SAP's data structures, particularly when dealing with hierarchical data models or structures in applications like SAP BW (Business Warehouse) or SAP HANA.
  Cause:
  This error usually arises when there are nodes in a hierarchical structure that cannot be assigned or linked properly. This can happen due to several reasons, including:
  
  Inconsistent Data Model: The structure may have been modified, and some nodes may no longer have valid relationships or assignments.
  Missing Assignments: Certain nodes may not have been assigned to their parent nodes correctly, leading to orphaned nodes.
  Data Integrity Issues: There may be issues with the underlying data integrity, such as missing keys or references that prevent proper assignment.
  Configuration Errors: Incorrect configuration settings in the data model or structure can lead to this error.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check the Structure: Review the hierarchical structure to identify any nodes that are not properly assigned. Look for orphaned nodes or nodes that do not have a valid parent.
  
  
  Validate Data Model: Ensure that the data model is correctly defined and that all nodes have the necessary relationships. You may need to reassign nodes to their appropriate parents.
  
  
  Data Consistency Check: Run consistency checks on the data model to identify and rectify any inconsistencies. This may involve using transaction codes or tools specific to your SAP environment.
  
  
  Review Configuration: Check the configuration settings related to the data structure. Ensure that all necessary settings are correctly defined and that there are no conflicts.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific application you are using (e.g., SAP BW, SAP HANA) for any known issues or additional troubleshooting steps.
  
  
  Seek Help from SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They may provide patches or specific guidance based on your system configuration.
  
  
  Related Information:
  
  Transaction Codes: Depending on your SAP environment, you may use specific transaction codes to analyze and modify data structures (e.g., RSA1 for SAP BW).
  SAP Notes: Check SAP Notes for any updates or fixes related to this error message.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.