How To Fix SO638 - Error while transferring recipient data

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 638

• Message text: Error while transferring recipient data

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SO638 - Error while transferring recipient data ?

  The SAP error message SO638, which states "Error while transferring recipient data," typically occurs during the process of sending emails or notifications through the SAP system. This error can arise due to various reasons, including issues with recipient data, configuration settings, or system connectivity.
  Causes of SO638 Error
  
  Invalid Recipient Address: The email address or recipient information may be incorrect or improperly formatted.
  Missing Recipient Data: Required fields for the recipient (like email address) may be missing.
  Configuration Issues: The SAP system may not be properly configured for sending emails, including settings in transaction SCOT (SAPconnect).
  Network Issues: There may be connectivity problems between the SAP system and the email server.
  Authorization Issues: The user or the system may lack the necessary permissions to send emails.
  SMTP Server Issues: The SMTP server may be down or misconfigured.
  
  Solutions to SO638 Error
  
  
  Check Recipient Data:
  
  Verify that the recipient's email address is correct and properly formatted.
  Ensure that all required fields for the recipient are filled in.
  
  
  
  Review Configuration Settings:
  
  Go to transaction SCOT and check the configuration for SAPconnect.
  Ensure that the SMTP settings are correctly configured, including the mail server address and port.
  
  
  
  Test Connectivity:
  
  Use transaction SOST to check the status of sent emails and see if there are any errors logged.
  Test the connection to the SMTP server to ensure it is reachable from the SAP system.
  
  
  
  Check Authorizations:
  
  Ensure that the user or the system has the necessary authorizations to send emails.
  Review user roles and profiles to confirm that they include email sending permissions.
  
  
  
  Review SMTP Server Logs:
  
  Check the logs on the SMTP server for any errors or issues that may indicate why the email could not be sent.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SCOT: Configuration of SAPconnect.
  SOST: Display of sent and unsent messages.
  SICF: Check the Internet Communication Framework settings if using web-based email.
  
  
  
  SAP Documentation: Refer to the official SAP Help Portal for detailed documentation on SAPconnect and email configuration.
  
  
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.
  
  
  By following these steps, you should be able to diagnose and resolve the SO638 error in your SAP system.