How To Fix KN090 - Internal error occurred. RETURN code: $

KN090 - Overview

• Message type: E = Error

• Message class: KN - Reporting for Costing

• Message number: 090

• Message text: Internal error occurred. RETURN code: $

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message KN090 - Internal error occurred. RETURN code: $ ?

  The SAP error message KN090, which states "Internal error occurred. RETURN code: $?", typically indicates that there is an unexpected issue within the SAP system related to master data processing, particularly in the area of customer master data (KNA1, KNB1, etc.). This error can arise from various underlying causes, including data inconsistencies, configuration issues, or problems with the underlying database.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies or corruption in the customer master data.
  
  Configuration Issues: Incorrect configuration settings in the SAP system can lead to internal errors.
  Database Issues: Problems with the database, such as locks or corruption, can trigger this error.
  Program Errors: Bugs or issues in the ABAP code or custom programs that interact with customer master data.
  Authorization Issues: Lack of proper authorizations for the user trying to access or modify the data.
  
  Solutions:
  
  
  Check for Data Inconsistencies:
  
  Use transaction codes like SE11 to check the database tables for inconsistencies.
  Run reports or programs that