How To Fix CL290 - Class has no index characteristics - existing tables are being deleted

CL290 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 290

• Message text: Class has no index characteristics - existing tables are being deleted

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CL290 - Class has no index characteristics - existing tables are being deleted ?

  The SAP error message CL290 indicates that a class does not have any index characteristics defined, and as a result, existing tables related to that class are being deleted. This typically occurs in the context of class-based object-oriented programming in SAP, particularly when dealing with characteristics in classification systems.
  
  Cause:
  
  No Index Characteristics Defined: The primary cause of this error is that the class in question does not have any index characteristics defined. Index characteristics are essential for the classification system to function correctly, as they allow for efficient data retrieval and management.
  Deletion of Existing Tables: When a class lacks index characteristics, SAP may attempt to clean up by deleting related tables that are no longer valid or necessary.
  
  
  Solution:
  To resolve this error, you need to ensure that the class has index characteristics defined. Here are the steps to do this:
  
  
  Access the Class:
  
  Go to the transaction code CL02 (Change Class) or CL03 (Display