How To Fix SB306 - Error in remote connection to SAP system with destination &1

SB306 - Overview

• Message type: E = Error

• Message class: SB - Version Management Messages

• Message number: 306

• Message text: Error in remote connection to SAP system with destination &1

What causes this issue?

An error occurred during RFC communication with a remote system. &V1&
was used as a destination (maintain destinations in transaction SM59).
Possible causes:
The remote system is not available.
The destination &V1& is no longer up-to-date.
The user name or password used for the logon is invalid.
Missing authorizations in the remote system.
Interface definitions that do not match.

System Response

No data was transmitted from or to the remote system.

How to fix this error?

Notify the system administration.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

SB306 - Details

• The SAP error message SB306 indicates that there is an issue with the remote connection to an SAP system specified by the destination parameter (&1). This error can occur for various reasons, and understanding the cause and potential solutions can help resolve the issue.
  Causes of SB306 Error
  
  
  Network Issues: There may be network connectivity problems between the client and the SAP server. This could be due to firewalls, routing issues, or network outages.
  
  
  Incorrect Destination Configuration: The destination configuration in the SAP system (transaction code SM59) may be incorrect. This includes incorrect hostnames, ports, or connection types.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access the remote system.
  
  
  SAP System Down: The target SAP system may be down or not reachable due to maintenance or other issues.
  
  
  RFC 
  Configuration Issues: There may be issues with the Remote Function Call (RFC) configuration, such as missing or incorrect parameters.
  
  
  Version Compatibility: There may be