How To Fix 27034 - Reading information on class node with instance &

SAP Error Message - Details

• Message type: E = Error

• Message class: 27 - API-specific configuration/master data messages

• Message number: 034

• Message text: Reading information on class node with instance &

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 27034 - Reading information on class node with instance & ?

  The SAP error message 27034, which states "Reading information on class node with instance &," typically occurs in the context of SAP's classification system. This error indicates that the system is unable to retrieve information for a specific class node or instance in the classification hierarchy.
  Causes:
  
  Missing Class Node: The class node or instance referenced in the error may not exist in the system.
  Authorization Issues: The user may not have the necessary authorizations to access the class node or instance.
  Data Inconsistency: There may be inconsistencies or corruption in the classification data.
  Configuration Issues: Incorrect configuration settings in the classification system can lead to this error.
  Transport Issues: If the class node was recently transported from another system, it may not have been transported correctly.
  
  Solutions:
  
  Check Class Node Existence: Verify that the class node or instance exists in the system. You can do this by navigating to the classification view in SAP and checking the relevant class.
  Review Authorizations: Ensure that the user has the necessary authorizations to access the class node. This can be checked in the user roles and profiles.
  Data Consistency Check: Run consistency checks on the classification data to identify and resolve any inconsistencies. This can often be done using transaction codes like CL02 (Change Class) or CL03 (Display Class).
  Configuration Review: Review the configuration settings related to the classification system to ensure they are set up correctly.
  Transport Logs: If the issue arose after a transport, check the transport logs to ensure that all necessary objects were transported correctly.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), and CL03 (Display Class) for managing classification data.
  SAP Documentation: Refer to SAP Help documentation for detailed information on the classification system and troubleshooting classification-related issues.
  Support Community: Engage with the SAP Community or forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis or technical team for further investigation.