How To Fix SY311 - Error during send (CMSEND), return code = &

SY311 - Overview

• Message type: E = Error

• Message class: SY - ABAP/4 system messages

• Message number: 311

• Message text: Error during send (CMSEND), return code = &

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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SY311 - Details

• The SAP error message SY311, which indicates "Error during send (CMSEND), return code = &", typically occurs when there is an issue with the communication between the SAP system and an external system or service. This error can arise in various contexts, such as when sending emails, messages, or data to other systems.
  Causes:
  
  Network Issues: Problems with the network connection can prevent successful communication.
  Configuration Errors: Incorrect settings in the SAP system or the external system can lead to communication failures.
  Authorization Issues: The user or system may not have the necessary permissions to send messages or data.
  Service Unavailability: The external service or system may be down or unreachable.
  Incorrect Parameters: Invalid or missing parameters in the function call can lead to errors during the send operation.
  Firewall or Security Settings: Firewalls or security settings may block the communication.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection is stable and that the SAP system can reach