How To Fix E0420 - Enter a valid receiver port

SAP Error Message - Details

• Message type: E = Error

• Message class: E0 - SAP EDI messages

• Message number: 420

• Message text: Enter a valid receiver port

What causes this issue?

An entry with the key &v2& is to be inserted in table
&v1&.
The specified receiver port '&v3&' is not valid.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter a valid receiver port. Use the Possible entries pushbutton to
display an overview of the receiver ports.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message E0420 - Enter a valid receiver port ?

  The SAP error message E0420 "Enter a valid receiver port" typically occurs in the context of configuring communication between different systems or components in SAP, such as when setting up an RFC (Remote Function Call) destination or configuring a communication channel in SAP PI/PO (Process Integration/Process Orchestration).
  Cause:
  
  Invalid Port Configuration: The error usually indicates that the port specified for the receiver is either not defined, incorrectly configured, or does not exist in the system.
  Missing or Incorrect RFC Destination: If you are trying to connect to another SAP system or an external system, the RFC destination may not be set up correctly.
  Transport Layer Issues: There may be issues with the transport layer settings, such as incorrect IP addresses or port numbers.
  Authorization Issues: The user may not have the necessary authorizations to access the specified port or destination.
  
  Solution:
  
  
  Check Port Configuration:
  
  Go to the transaction code SM59 (RFC Destinations) and verify that the RFC destination you are trying to use is correctly configured.
  Ensure that the target system's hostname and port number are correctly specified.
  
  
  
  Verify Receiver Port:
  
  If you are using SAP PI/PO, check the configuration of the communication channel. Ensure that the receiver port is correctly defined in the channel settings.
  Make sure that the port is active and not blocked by any firewall or network settings.
  
  
  
  Test Connection:
  
  Use the "Test Connection" feature in SM59 to ensure that the connection to the target system is working properly.
  If the test fails, check the network settings and ensure that the target system is reachable.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the specified RFC destination or communication channel.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SLG1) for any additional error messages or details that might provide more context about the issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or support notes related to the specific version of SAP you are using for any known issues or additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SLG1: Application Log
  SICF: Maintain HTTP Services (for web services)
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to your version of SAP.
  
  
  Community Forums: Consider checking SAP Community forums or other online resources for similar issues and solutions shared by other users.
  
  
  By following these steps, you should be able to identify and resolve the cause of the E0420 error in your SAP system.