How To Fix QS734 - Internal error when reading classification

QS734 - Overview

• Message type: E = Error

• Message class: QS - QM: Master data

• Message number: 734

• Message text: Internal error when reading classification

What causes this issue?

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

System Response

How to fix this error?

Contact SAP.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message QS734 - Internal error when reading classification ?

  The SAP error message QS734, which indicates an "Internal error when reading classification," typically arises during operations involving classification data in the SAP system. This error can occur in various contexts, such as when trying to access or manipulate classification data for materials, documents, or other objects.
  Possible Causes:
  
  Data Inconsistency: There may be inconsistencies or corruption in the classification data or the underlying database tables.
  Authorization Issues: The user may not have the necessary authorizations to access the classification data.
  System Bugs: There could be a bug in the SAP system or a specific transaction that is causing the error.
  
  Configuration Issues: Incorrect configuration settings in the classification system or related modules may lead to this error.
  Database Issues: Problems with the database, such as locks or corruption, can also trigger this error.
  
  Solutions:
  
  
  Check for Data Consistency:
  
  Use transaction codes like CL02 (Change Class) or CL03 (Display Class) to check if the classification data is intact.
  Run consistency