How To Fix C1073 - Class type not supported

C1073 - Overview

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 073

• Message text: Class type not supported

What causes this issue?

You want to restrict use of characteristic &v2& to certain class types.
However, characteristic &v2& is linked to field &v4& in table &v3&, and
use of this field is not supported in class type &v1&.

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?

Remove your entry.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1073 - Class type not supported ?

  The SAP error message C1073, which states "Class type not supported," typically occurs when there is an issue with the class type being used in a particular context, such as in a program, function module, or transaction. This error can arise in various scenarios, including when working with object-oriented programming in ABAP or when dealing with class-based components.
  Causes:
  
  Unsupported Class Type: The class type being referenced may not be supported in the context where it is being used. For example, trying to use a class that is not instantiated or is of an incorrect type.
  Incorrect Class Definition: The class may not be defined correctly, or it may not implement the required interfaces or inherit from the correct parent class.
  Version Compatibility: The class may be from a different version of SAP or may not be compatible with the current system configuration.
  Namespace Issues: If the class is in a different namespace and not