How To Fix CNV222 - No RFC connection in system &1. Switch to "Backup".

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 222

• Message text: No RFC connection in system &1. Switch to "Backup".

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 CNV222 - No RFC connection in system &1. Switch to "Backup". ?

  The SAP error message "CNV222 No RFC connection in system &1. Switch to 'Backup'." typically indicates that there is an issue with the Remote Function Call (RFC) connection to the specified system. This error is often encountered during data migration or system conversion processes, particularly when using SAP's Software Update Manager (SUM) or other tools that require RFC connections to communicate between systems.
  
  Cause:
  
  
  RFC Connection Issues: The primary cause of this error is that the system is unable to establish an RFC connection to the target system (denoted as &1 in the error message). This could be due to:
  
  Incorrect configuration of the RFC destination in transaction SM59.
  Network issues preventing communication between the systems.
  The target system being down or not reachable.
  Authorization issues that prevent the user from establishing the connection.
  
  
  
  Configuration Errors: There may be misconfigurations in the SAP system settings or in the transport layer that affect the ability to connect to