How To Fix CM_MRP_MAIL003 - Enqueue error in function module SO_DOCUMENT_SEND_API1

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_MRP_MAIL - Messages from Mailer Class

• Message number: 003

• Message text: Enqueue error in function module SO_DOCUMENT_SEND_API1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CM_MRP_MAIL003 - Enqueue error in function module SO_DOCUMENT_SEND_API1 ?

  The SAP error message CM_MRP_MAIL003 indicates an enqueue error in the function module SO_DOCUMENT_SEND_API1. This error typically occurs when there is an issue with the locking mechanism in SAP, which prevents the system from sending emails or documents due to resource contention or other related issues.
  Cause:
  
  Lock Conflicts: The most common cause of this error is that the system is trying to access a resource that is currently locked by another process. This can happen if multiple users or processes are trying to send emails or access the same document simultaneously.
  System Performance Issues: If the SAP system is under heavy load, it may lead to delays in processing requests, resulting in enqueue errors.
  Configuration Issues: Incorrect configuration of the email sending settings or the underlying communication infrastructure can also lead to this error.
  Database Locks: Sometimes, database locks can prevent the function from executing properly.
  
  Solution:
  
  Check Lock Entries: Use transaction code SM12 to check for any existing lock entries. If you find locks that are no longer needed, you can delete them (ensure that you have the necessary authorizations and that it is safe to do so).
  Review System Load: Monitor the system performance using transaction codes like SM37 (job monitoring) and ST22 (dump analysis) to identify any long-running processes or performance bottlenecks.
  Retry Sending: If the error is transient, simply retrying the operation after a short wait may resolve the issue.
  Check Configuration: Ensure that the email configuration settings in transaction SCOT (SAPconnect) are correctly set up. Verify that the SMTP settings are correct and that the mail server is reachable.
  Update SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches that could resolve underlying issues.
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if it is affecting business operations.
  
  Related Information:
  
  Transaction Codes:
  
  SM12: To view and manage lock entries.
  SCOT: To configure SAPconnect settings for email.
  SM37: To monitor background jobs.
  ST22: To analyze short dumps.
  
  
  SAP Notes: Always check the SAP Support Portal for any specific notes related to the error message or the function module in question.
  Documentation: Review the documentation for the function module SO_DOCUMENT_SEND_API1 to understand its parameters and usage better.
  
  By following these steps, you should be able to diagnose and resolve the enqueue error associated with the CM_MRP_MAIL003 message.