How To Fix DNO221 - Communication error when sending to BC: & & &

SAP Error Message - Details

• Message type: E = Error

• Message class: DNO - Messages for General Notifications

• Message number: 221

• Message text: Communication error when sending to BC: & & &

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DNO221 - Communication error when sending to BC: & & & ?

  The SAP error message DNO221, which indicates a "Communication error when sending to BC," typically occurs in the context of SAP's Business Communication (BC) services. This error can arise due to various reasons, including network issues, configuration problems, or issues with the Business Communication service itself.
  Causes:
  
  Network Issues: There may be connectivity problems between the SAP system and the Business Communication service.
  Configuration Errors: Incorrect settings in the SAP system or the Business Communication service can lead to communication failures.
  Service Availability: The Business Communication service may be down or not reachable due to maintenance or other issues.
  Firewall or Security Settings: Firewalls or security settings may be blocking the communication between the systems.
  Incorrect Credentials: If authentication is required, incorrect credentials can lead to communication errors.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the Business Communication service is stable and operational. You can use tools like ping or traceroute to diagnose connectivity issues.
  Review Configuration Settings: Verify the configuration settings in both the SAP system and the Business Communication service. Ensure that all parameters are correctly set, including URLs, ports, and authentication methods.
  Service Status: Check the status of the Business Communication service to ensure it is up and running. If it is down, you may need to wait until it is restored or contact the service provider.
  Firewall and Security Settings: Review firewall rules and security settings to ensure that they allow communication between the SAP system and the Business Communication service.
  Check Logs: Review the SAP application logs and the logs of the Business Communication service for any additional error messages or warnings that could provide more context about the issue.
  Test with Different Credentials: If applicable, test the connection using different credentials to rule out authentication issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the DNO221 error. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Refer to the official SAP documentation for Business Communication services to ensure that you are following the recommended configuration and usage guidelines.
  Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance. Provide them with detailed information about the error, including any relevant logs and configuration settings.
  
  By following these steps, you should be able to diagnose and resolve the DNO221 communication error in your SAP environment.