How To Fix /IWNGW/CM_HUB135 - Email will not be delivered to all recepients of notification '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_HUB -

• Message number: 135

• Message text: Email will not be delivered to all recepients of notification '&1'

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 /IWNGW/CM_HUB135 - Email will not be delivered to all recepients of notification '&1' ?

  The SAP error message /IWNGW/CM_HUB135 indicates that there is an issue with the delivery of email notifications to recipients. This error typically arises in the context of SAP's notification system, particularly when using the SAP Connect (SCOT) or the Internet Communication Framework (ICF) for sending emails.
  Cause:
  The error message suggests that the email notification could not be delivered to all intended recipients. Possible causes include:
  
  Invalid Email Addresses: One or more of the recipient email addresses may be incorrectly formatted or invalid.
  Email Configuration Issues: There may be issues with the configuration of the email sending settings in SAP (e.g., SMTP settings).
  Recipient Restrictions: Some recipients may have restrictions on receiving emails from the SAP system (e.g., spam filters).
  Network Issues: There could be network connectivity issues preventing the email from being sent.
  SAP System Errors: There may be underlying issues within the SAP system that are preventing the email from being processed correctly.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Email Addresses: Verify that all recipient email addresses are valid and correctly formatted. Ensure there are no typos or missing components (e.g., '@domain.com').
  
  
  Review Email Configuration:
  
  Go to transaction SCOT and check the configuration for SMTP settings.
  Ensure that the SMTP server is correctly configured and reachable.
  Check if the email sending method is set up correctly.
  
  
  
  Test Email Sending: Use transaction SOST to check the status of sent emails. You can also send a test email to verify that the email configuration is working.
  
  
  Check for Restrictions: Ensure that there are no restrictions on the recipient's email server that could prevent the delivery of emails from your SAP system.
  
  
  Review Logs: Check the application logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  
  Network Connectivity: Ensure that there are no network issues that could be affecting the ability to send emails.
  
  
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  
  
  Related Information:
  
  Transaction Codes:
  
  SCOT: SAPconnect Administration
  SOST: Send Requests Overview
  SLG1: Application Log
  
  
  Documentation: Refer to SAP Help documentation for more details on configuring email notifications and troubleshooting email delivery issues.
  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 identify and resolve the issue causing the /IWNGW/CM_HUB135 error message.