How To Fix MY401 - Delta posting was not executed - check the log

SAP Error Message - Details

• Message type: E = Error

• Message class: MY - Messages for Balance Sheet Valuation(Low.Val.Det./LIFO/FIFO)

• Message number: 401

• Message text: Delta posting was not executed - check the log

Check the errors in the log and resolve the errors.

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 MY401 - Delta posting was not executed - check the log ?

  The SAP error message MY401, which states "Delta posting was not executed - check the log," typically occurs in the context of the Material Management (MM) module, particularly when dealing with inventory management and delta postings. This error indicates that there was an issue with the delta posting process, which is responsible for updating inventory levels based on transactions.
  Causes of MY401 Error
  
  
  Data Inconsistencies: There may be inconsistencies in the data being processed, such as missing or incorrect entries in the relevant tables.
  
  
  Configuration Issues: Incorrect configuration settings in the system can lead to problems with delta postings.
  
  
  Authorization Issues: The user executing the transaction may not have the necessary authorizations to perform delta postings.
  
  
  System Errors: Temporary system errors or issues with the background job that processes delta postings can also trigger this error.
  
  
  Log File Issues: The log file that records the details of the delta posting process may not be accessible or may contain errors.
  
  
  Solutions to MY401 Error
  
  
  Check the Log: The first step is to check the log file for detailed error messages. This log can provide insights into what specifically went wrong during the delta posting process. You can usually find the log in transaction codes like SLG1 (Application Log) or in the specific transaction related to the delta posting.
  
  
  Data Validation: Validate the data being processed for the delta posting. Ensure that all necessary entries are present and correct in the relevant tables.
  
  
  Configuration Review: Review the configuration settings related to inventory management and delta postings. Ensure that they are set up correctly according to your business requirements.
  
  
  Authorization Check: Verify that the user has the necessary authorizations to perform the delta posting. You may need to consult with your SAP security team to ensure proper access rights.
  
  
  System Monitoring: Check for any ongoing system issues or background job failures that may be affecting the delta posting process. You can use transaction codes like SM37 to monitor background jobs.
  
  
  Re-execute the Posting: After addressing any identified issues, try to re-execute the delta posting process.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  Related Information
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB1A (Goods Withdrawal), MB1B (Transfer Posting), and MB1C (Other Goods Receipts) that may be involved in the delta posting process.
  SAP Documentation: Review SAP documentation related to inventory management and delta postings for additional context and troubleshooting steps.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the MY401 error effectively.