How To Fix SO626 - Communication error

SAP Error Message - Details

• Message type: E = Error

• Message class: SO - SAPoffice: message texts

• Message number: 626

• Message text: Communication error

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 SO626 - Communication error ?

  The SAP error message SO626 indicates a communication error, typically related to issues in the SAPconnect (SAPoffice) configuration or problems with the underlying network or system settings. This error can occur when the system is unable to send or receive messages, such as emails or faxes, through the SAPconnect interface.
  Causes of SO626 Communication Error
  
  Network Issues: Problems with the network connection can prevent communication between the SAP system and external mail servers or services.
  Configuration Errors: Incorrect settings in the SAPconnect configuration (transaction code SCOT) can lead to communication failures.
  Mail Server Issues: The external mail server may be down, misconfigured, or unreachable.
  Authorization Issues: The user or system may lack the necessary permissions to send messages.
  Transport Layer Security (TLS) Issues: If TLS is required for communication and not properly configured, it can lead to errors.
  Firewall Restrictions: Firewalls may block the necessary ports for communication.
  
  Solutions to SO626 Communication Error
  
  
  Check Network Connectivity:
  
  Ensure that the SAP system can reach the mail server. You can use tools like ping or telnet to test connectivity.
  
  
  
  Review SAPconnect Configuration:
  
  Go to transaction code SCOT and check the configuration settings for the communication method (e.g., SMTP for email).
  Ensure that the SMTP server address, port, and other parameters are correctly configured.
  
  
  
  Test Mail Server:
  
  Verify that the external mail server is operational and correctly configured to accept connections from the SAP system.
  
  
  
  Check User Authorizations:
  
  Ensure that the user or service account used for sending messages has the necessary authorizations.
  
  
  
  Review TLS Settings:
  
  If using TLS, ensure that the correct certificates are installed and that the settings in SCOT are properly configured.
  
  
  
  Firewall Configuration:
  
  Check firewall settings to ensure that the necessary ports (e.g., port 25 for SMTP) are open for communication.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that may address known issues or provide patches related to the SO626 error.
  
  
  
  Review Logs:
  
  Check the application logs (transaction code SLG1) for more detailed error messages that can provide additional context for the communication failure.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SCOT: SAPconnect configuration
  SLG1: Application log display
  SOST: Outbound messages overview
  
  
  
  Documentation: Refer to SAP Help documentation for SAPconnect and email configuration for detailed guidance.
  
  
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to diagnose and resolve the SO626 communication error in your SAP system.