How To Fix 28064 - Class (&)& not valid

28064 - Overview

• Message type: E = Error

• Message class: 28 - Configuration

• Message number: 064

• Message text: Class (&)& not valid

What causes this issue?

The syntax check found an error in an entry for a class. The
combination of class type and class number is incorrect.

System Response

The cursor shows where the error occurs in your entry.

How to fix this error?

A class is accessed via the class type and language-independent class
number, for example:
(300)TV_SET
Check whether the class type at the cursor, &V1&, exists, and whether
the class you entered, &V2&, exists for this class type and is valid.
Check also other possible causes of error (messages).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 28064 - Class (&)& not valid ?

  The SAP error message "28064 Class (&)& not valid" typically indicates that there is an issue with the classification system in SAP, specifically related to the class type or class name that is being referenced. This error can occur in various contexts, such as when trying to create or modify a classification, or when attempting to assign a class to an object.
  
  Cause:
  
  Invalid Class Name or Type: The class name or type being referenced does not exist in the system or is incorrectly specified.
  Authorization Issues: The user may not have the necessary authorizations to access or modify the specified class.
  Data Inconsistency: There may be inconsistencies in the classification data, such as missing entries in the classification tables.
  
  Configuration Issues: The classification system may not be properly configured, leading to issues with class recognition.
  
  
  Solution:
  
  Check Class Name and Type: Verify that the class name and type you are trying to use are correct. You