How To Fix CL502 - Class type & : transaction not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 502

• Message text: Class type & : transaction not allowed

What causes this issue?

Class type &V1& was defined such that classification transactions
cannot be started. To classify the object, you can only use object
maintenance functionality.

System Response

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

How to fix this error?

Call the maintenance function for the object, then classify the object
in the maintenance function.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL502 - Class type & : transaction not allowed ?

  The SAP error message CL502, which states "Class type & : transaction not allowed," typically occurs when there is an attempt to perform a transaction that is not permitted for a specific class type in the SAP system. This error is often related to the classification system in SAP, particularly in the context of Class Management (Classification and Object Management).
  Cause:
  
  Class Type Restrictions: Each class type in SAP has specific settings that determine what transactions can be performed. For example, certain class types may be restricted to only allow certain operations (like display or change) and not allow others (like create or delete).
  Authorization Issues: The user may not have the necessary authorizations to perform the transaction on the specified class type.
  Configuration Settings: The configuration of the class type may not allow the transaction being attempted. This could be due to settings in the Class Management configuration.
  Object Type: The object type associated with the class may not support the transaction being attempted.
  
  Solution:
  
  Check Class Type Configuration: Review the configuration settings for the class type in transaction CL02 (Change Class) or CL03 (Display Class). Ensure that the class type is configured to allow the desired transaction.
  Review Authorizations: Check the user’s authorizations using transaction SU53 or SUIM to ensure that the user has the necessary permissions to perform the transaction on the specified class type.
  Consult Documentation: Refer to SAP documentation or help resources to understand the specific restrictions associated with the class type you are working with.
  Contact SAP Support: If the issue persists and you cannot identify the cause, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), and CL03 (Display Class) for managing classes.
  Class Types: Understand the different class types available in SAP (e.g., material classes, equipment classes) and their specific functionalities.
  Authorization Objects: Review the relevant authorization objects that control access to class management transactions, such as C_TCLM (Class Management).
  
  By following these steps, you should be able to diagnose and resolve the CL502 error in SAP.