How To Fix JO704 - Communication problem has occurred. Check RFC destination &

JO704 - Overview

• Message type: E = Error

• Message class: JO - Project Information System: All Overviews

• Message number: 704

• Message text: Communication problem has occurred. Check RFC destination &

What causes this issue?

The SAP System could not communicate with the external system you have
selected. The program terminated.

System Response

INCLUDE 'NA_ALLG_NOFUNKTION' OBJECT DOKU ID TX LANGUAGE E

How to fix this error?

INCLUDE 'NA_ALLG_SYSTEMVERW' OBJECT DOKU ID TX LANGUAGE E
INCLUDE 'NA_ALLG_VORGEHEN' OBJECT DOKU ID TX LANGUAGE E
Check the RFC destination. Correct destinations are PS_ACCESS_1 and
PS_ACCESS_2.
Check the path to program WDAPSASTR.EXE or WDAPSATAB.EXE. The path must
be valid in order for the SAP System to communicate.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message JO704 - Communication problem has occurred. Check RFC destination & ?

  The SAP error message JO704 indicates that there is a communication problem related to the Remote Function Call (RFC) destination. This error typically arises when the system is unable to establish a connection to the specified RFC destination, which is crucial for communication between different SAP systems or between an SAP system and external systems.
  Causes of JO704 Error
  
  
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect parameters such as the target system's hostname, port, or connection type.
  
  
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the target system. This could be due to firewall settings, network outages, or incorrect routing.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the target system.
  
  
  Target System Down: The target SAP system or external system may be down or not responding.
  
  
  SAP