How To Fix /MSG/4_PM_MESSAGE051 - System or communication error '&1&2' at RFC destination '&3'

SAP Error Message - Details

• Message type: E = Error

• Message class: /MSG/4_PM_MESSAGE -

• Message number: 051

• Message text: System or communication error '&1&2' at RFC destination '&3'

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 /MSG/4_PM_MESSAGE051 - System or communication error '&1&2' at RFC destination '&3' ?

  The SAP error message /MSG/4_PM_MESSAGE051 indicates a system or communication error that occurred at the RFC (Remote Function Call) destination specified in the message. The placeholders &1, &2, and &3 represent specific details about the error, such as the error code, additional error information, and the RFC destination name, respectively.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system defined in the RFC destination.
  RFC Destination Configuration: The RFC destination may not be configured correctly. This includes incorrect login credentials, incorrect target host or service, or missing parameters.
  Target System Down: The target system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls or security settings may be blocking the communication between the two systems.
  SAP System Issues: There may be issues with the SAP system itself, such as memory issues, performance problems, or other system errors.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the