How To Fix C1221 - Internal error: &1 (OMERK=&2), overwrite deleted

C1221 - Overview

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 221

• Message text: Internal error: &1 (OMERK=&2), overwrite deleted

What causes this issue?

The internal key for overwriting the characteristic &V1& was deleted
accidentally. The class no longer has a reference to the overwrite
(KSML-OMERK), but only the original master data of the characteristic
&V1&.

System Response

The transaction is canceled to prevent the overwrite being deleted on
the database.

How to fix this error?

Start the transaction again.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message C1221 - Internal error: &1 (OMERK=&2), overwrite deleted ?

  The SAP error message C1221, which states "Internal error: &1 (OMERK=&2), overwrite deleted," typically indicates an internal inconsistency or issue within the SAP system, particularly related to the handling of certain data records. This error can occur in various contexts, often related to the configuration or processing of materials, orders, or other transactional data.
  
  Cause:
  
  Data Integrity Issues: The error may arise due to inconsistencies in the database, such as attempts to overwrite or access deleted records.
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they might be causing unexpected behavior leading to this error.
  System Bugs: There may be bugs in the SAP version you are using that trigger this error under specific conditions.
  
  Configuration Issues: Incorrect configuration settings in the relevant modules (like Material Management or Sales and Distribution) can lead to this error.
  
  
  Solution:
  
  Check for Data Integrity: Use transaction codes like SE11 (Data Dictionary) or SE16 (Data