How To Fix CL591 - Class type not entered

SAP Error Message - Details

• Message type: E = Error

• Message class: CL - Classification

• Message number: 591

• Message text: Class type not entered

What causes this issue?

An internal error has occurred. The class type was not given.

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?

INCLUDE NA_SYSADMIN1 OBJECT DOKU ID TX
The error is in class maintenance. When function module
'CLDL_DELETE_CLASSIF_FROM_CLASS' was called, the class type was not
given.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CL591 - Class type not entered ?

  The SAP error message CL591, which states "Class type not entered," typically occurs when you are trying to create or manage a class in the SAP system without specifying the class type. Class types in SAP are used to categorize classes in the classification system, and they are essential for the system to understand how to handle the class.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Missing Class Type: The user did not enter a class type when trying to create or modify a class.
  Incorrect Configuration: The system may not be properly configured to recognize the class type.
  User Input Error: The user may have overlooked the field for entering the class type.
  
  Solution:
  To resolve the CL591 error, you can follow these steps:
  
  
  Check Input Fields: Ensure that you have entered a valid class type in the relevant field when creating or modifying a class. The class type is usually a numeric value that corresponds to a specific category of classes (e.g., 001 for material classes, 002 for customer classes, etc.).
  
  
  Use the Correct Transaction: Make sure you are using the correct transaction code for creating or managing classes. For example, you can use transaction code CL01 to create a class.
  
  
  Review Class Type Configuration: If you are unsure about the class types available in your system, you can check the configuration in the Customizing settings:
  
  Go to transaction SPRO.
  Navigate to Logistics General > Master Data > Classifications > Define Class Types.
  Ensure that the class types you need are defined and active.
  
  
  
  Consult Documentation: If you are still facing issues, refer to SAP documentation or help resources for more information on class types and their usage.
  
  
  Contact Support: If the problem persists, consider reaching out to your SAP support team or consulting with an SAP expert who can provide further assistance.
  
  
  Related Information:
  
  Class Types: Class types are defined in the SAP system and can be customized based on business requirements. Each class type can have its own characteristics and attributes.
  Classification System: The classification system in SAP allows for the categorization of objects (like materials, equipment, etc.) to facilitate better data management and reporting.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CL01 (Create Class), CL02 (Change Class), and CL03 (Display Class) for managing classes in SAP.
  
  By ensuring that the class type is correctly entered and configured, you should be able to resolve the CL591 error effectively.