How To Fix MRNB023 - Error reading error message &1 (message class &2)

MRNB023 - Overview

• Message type: E = Error

• Message class: MRNB - Messages for Revaluation (Retro Active Pricing)

• Message number: 023

• Message text: Error reading error message &1 (message class &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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message MRNB023 - Error reading error message &1 (message class &2) ?

  The SAP error message MRNB023, which states "Error reading error message &1 (message class &2)," typically indicates that the system is unable to retrieve a specific error message from the message class defined in the system. This can occur for several reasons, and here are some potential causes, solutions, and related information:
  Causes:
  
  Missing Message Class or Message: The specified message class or the specific message number does not exist in the system.
  Transport Issues: If the message class was recently transported from another system, it may not have been properly imported or activated.
  Authorization Issues: The user may not have the necessary authorizations to access the message class or the specific message.
  System 
  Configuration Issues: There may be configuration issues within the SAP system that prevent the retrieval of messages.
  
  Solutions:
  
  
  Check Message Class:
  
  Use transaction code SE91 to check if the message class and the specific message number exist. If they do not, you may need