How To Fix CL012 - No class long texts found in language "&"

CL012 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 012

• Message text: No class long texts found in language "&"

What causes this issue?

1:
You have chosen the <LS>Extras -> Change language</> function:
You have entered a language in which there are no long texts. The
system tries to find long texts to display in language &V1&, but can't
find any.
2:
You are creating a class by copying an existing class, and have
selected texts to copy to the new class as defaults. However, no long
texts exist in language &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?

First maintain long texts in language &V1&, then choose the language
you want to translate into.
Otherwise, no source text for translation can be displayed in language
&V1&.

Error message extract from SAP system. Copyright SAP SE.

CL012 - Details

• The SAP error message CL012, which states "No class long texts found in language '&'", typically occurs when the system is unable to find long text descriptions for a class in the specified language. This can happen for various reasons, such as missing long text entries in the classification system or issues with language settings.
  
  Cause:
  
  Missing Long Texts: The long text for the class in the specified language has not been created or is missing.
  Incorrect Language Setting: The language code specified may not be valid or may not correspond to any long text entries in the system.
  Transport Issues: If the long texts were recently transported from another system, there may have been an issue during the transport process.
  Authorization Issues: The user may not have the necessary authorizations to view the long texts.
  
  
  Solution:
  
  
  Check Long Texts:
  
  Go to the classification view in SAP and check if the long text for the specific class exists