How To Fix KP021 - System error: Error when reading internal table

KP021 - Overview

• Message type: E = Error

• Message class: KP - CO-OM Planning

• Message number: 021

• Message text: System error: Error when reading internal table

What causes this issue?

A program error occurred during revaluation. No entry was found in an
internal table for &V1& (table &v2&).

System Response

Processing is terminated.

How to fix this error?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KP021 - System error: Error when reading internal table ?

  The SAP error message KP021, which states "System error: Error when reading internal table," typically indicates that there is an issue with the internal data structures used by the SAP system. This error can occur in various contexts, often related to the configuration or processing of cost planning or controlling (CO) functions.
  Causes:
  
  Data Corruption: The internal table may have become corrupted due to a system error or an inconsistency in the database.
  Memory Issues: Insufficient memory or resources allocated to the SAP system can lead to problems when trying to read internal tables.
  Program Errors: There may be a bug in the ABAP program that is trying to access the internal table, leading to unexpected behavior.
  
  Configuration Issues: Incorrect configuration settings in the controlling module can lead to errors when the system attempts to read or process data.
  Database Issues: Problems with the underlying database, such as locks or inconsistencies, can also lead to this