How To Fix OT777 - SAPRFCCOPY cannot be called without specifying a TCP/IP connection

SAP Error Message - Details

• Message type: E = Error

• Message class: OT - SAP Online Correction Support (SOCS)

• Message number: 777

• Message text: SAPRFCCOPY cannot be called without specifying a TCP/IP connection

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message OT777 - SAPRFCCOPY cannot be called without specifying a TCP/IP connection ?

  The SAP error message OT777, which states "SAPRFCCOPY cannot be called without specifying a TCP/IP connection," typically occurs when there is an attempt to use the RFC (Remote Function Call) interface without a proper TCP/IP connection being established. This can happen in various scenarios, such as when trying to call a remote function module or when there is a misconfiguration in the RFC destination settings.
  Cause:
  
  Missing or Incorrect RFC Destination: The RFC destination that you are trying to use may not be defined correctly in the SAP system.
  Network Issues: There may be network connectivity issues preventing the SAP system from establishing a TCP/IP connection.
  Configuration Errors: The configuration settings for the RFC destination may be incomplete or incorrect.
  Authorization Issues: The user may not have the necessary authorizations to execute the RFC call.
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Verify that the RFC destination you are trying to use is correctly defined and active.
  Test the connection to ensure that it can successfully connect to the target system.
  
  
  
  Network Configuration:
  
  Ensure that the network settings are correct and that there are no firewalls or network policies blocking the connection.
  Check if the target system is up and running.
  
  
  
  Review Configuration:
  
  Ensure that all required parameters in the RFC destination configuration are filled out correctly, including the target host, system number, and client.
  If using a secure connection (e.g., SNC), ensure that the necessary settings are in place.
  
  
  
  Authorization Check:
  
  Ensure that the user executing the RFC call has the necessary authorizations to perform the action.
  Check the roles and profiles assigned to the user.
  
  
  
  Debugging:
  
  If the issue persists, consider enabling trace logs for the RFC calls to gather more information about the failure.
  Use transaction ST22 to check for any dumps that may provide additional context.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP documentation related to RFC and TCP/IP connections for best practices and configuration guidelines.
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the OT777 error in your SAP environment.