Message type: E = Error
Message class: DNO - Messages for General Notifications
Message number: 221
Message text: Communication error when sending to BC: & & &
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.
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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
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