How To Fix KP221 - System error: error while reading internal table

KP221 - Overview

• Message type: E = Error

• Message class: KP - CO-OM Planning

• Message number: 221

• Message text: System error: error while reading internal table

What causes this issue?

A program error occurred during activity price calculation. No entry
was found in an internal table for cost center &V1&, activity type
&V2&.
Table &V3&

System Response

Processing is terminated.

How to fix this error?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

KP221 - Details

• The SAP error message KP221 ("System error: error while reading internal table") typically indicates that there is an issue with the internal data structures used by the SAP system during the execution of a transaction or report. This error can occur in various contexts, often related to the Controlling (CO) module, particularly in transactions involving cost planning or actual postings.
  Possible 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 allocation for the internal tables can lead to this error.
  Program Errors: Bugs in custom ABAP programs or modifications that manipulate internal tables incorrectly.
  Database Issues: Problems with the underlying database, such as locks or inconsistencies.
  Transport Issues: If the error occurs after a transport, it may be due to missing objects or dependencies.
  
  Solutions:
  
  Check for System Updates: Ensure that your SAP system is up to date with the latest support