How To Fix MO426 - Error when deleting database record

SAP Error Message - Details

• Message type: E = Error

• Message class: MO - Modeling and Prototyping

• Message number: 426

• Message text: Error when deleting database record

What causes this issue?

An error occurred when deleting the database record.

System Response

The database record was not deleted. It may already not have existed
any longer in the database.

How to fix this error?

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 MO426 - Error when deleting database record ?

  The SAP error message MO426 typically indicates that there is an issue when attempting to delete a database record, often related to the Material Master or other related data. This error can arise due to various reasons, including:
  Causes of MO426 Error:
  
  Data Integrity Issues: The record you are trying to delete may be linked to other records or transactions, which prevents its deletion.
  Authorization Problems: The user may not have the necessary permissions to delete the record.
  Database Constraints: There may be foreign key constraints or other database-level restrictions that prevent the deletion of the record.
  Locked Records: The record might be locked by another user or process, preventing deletion.
  Custom Code or Enhancements: Custom ABAP code or enhancements may be interfering with the deletion process.
  
  Solutions to MO426 Error:
  
  Check Dependencies: Investigate if the record is linked to other records (e.g., purchase orders, production orders). You may need to delete or modify those linked records first.
  Review Authorizations: Ensure that the user has the necessary authorizations to delete the record. This can be checked in transaction SU53 or by consulting with your security team.
  Unlock Records: If the record is locked, identify the user or process that is holding the lock and resolve it. You can use transaction SM12 to check for locks.
  Database Constraints: Review the database schema to understand any constraints that may be preventing deletion. You may need to consult with your database administrator.
  Check Custom Code: If there are custom enhancements or user exits that might affect the deletion process, review and test them to ensure they are not causing the issue.
  Use Transaction Codes: Use appropriate transaction codes (like MM02 for Material Master) to check the status of the record and see if it can be modified or deleted through the standard process.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MM02 (Change Material), MM03 (Display Material), and SE11 (Data Dictionary) to analyze the data structure.
  SAP Notes: Check SAP Notes for any known issues or patches related to the MO426 error. You can search for relevant notes in the SAP Support Portal.
  Logs and Traces: Use transaction SLG1 to check application logs for more detailed error messages that may provide additional context for the issue.
  Consult Documentation: Review SAP documentation or help files related to the specific module you are working with for more insights.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or technical team for further investigation.