How To Fix ECH_MSG021 - Enter a persistency class for &1 &2

ECH_MSG021 - Overview

• Message type: E = Error

• Message class: ECH_MSG - Messages for Error & Conflict Handler

• Message number: 021

• Message text: Enter a persistency class for &1 &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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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ECH_MSG021 - Details

• The SAP error message ECH_MSG021, which states "Enter a persistency class for &1 &2," typically occurs in the context of the SAP Environment for the management of data persistence, particularly when working with the Enterprise Cache (ECH) or similar data management frameworks.
  
  Cause:
  This error message indicates that a required persistency class has not been defined for a specific object or entity in the system. The persistency class is essential for determining how data is stored and managed within the SAP system. The placeholders &1 and &2 usually represent the specific object type and its identifier (like a table name or structure).
  
  Solution:
  To resolve this error, you need to define a persistency class for the specified object. Here are the steps you can take:
  
  
  Identify the Object: Check the error message for the specific object type and identifier (the values of &1 and &2).
  
  
  Access the Configuration: Go to the relevant configuration area in the