How To Fix COOPC102 - RFC communication error; &1&2&3&4

COOPC102 - Overview

• Message type: E = Error

• Message class: COOPC - Messages for SAP-OPC Integration

• Message number: 102

• Message text: RFC communication error; &1&2&3&4

What causes this issue?

When accessing an <DS:GLOS.81831343B0CAD411B11B0008C784EFB1>OPC server
</>, an <DS:GLOS.3526AFF8AFAB52B9E10000009B38F974>RFC</> communication
error occurred. The <DS:GLOS.9E1CCF44B0CAD411B11B0008C784EFB1>SAP ODA
Connector</> was not reached.
The text of the RFC error reads as follows: "&V1&&V2&&V3&&V4&".

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?

Check the RFC destination definition.
To do so, go to Customizing for <LS>Production Planning - Process
Industries</> and choose <LS>Process Management</> -> <LS>SAP ODA (OPC
Data Access)</> -> <DS:SIMG.COOPC110>Define RFC Destination for SAP ODA
</>.
Test the RFC connection.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

COOPC102 - Details

• The SAP error message COOPC102, which indicates an "RFC communication error," typically arises when there is a problem with the Remote Function Call (RFC) communication between SAP systems or between an SAP system and an external system. The error message may include additional details represented by placeholders (&1, &2, &3, &4) that provide specific information about the nature of the error.
  Causes of COOPC102 RFC Communication Error
  
  
  Network Issues: Problems with the network connection between the systems can lead to communication failures. This could be due to firewalls, routing issues, or network outages.
  
  
  Configuration Errors: Incorrect configuration of RFC destinations in the SAP system can cause communication errors. This includes incorrect settings in transaction SM59.
  
  
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to perform the requested operation.
  
  
  System Availability: The target system may be down or not reachable, leading to communication errors.
  
  
  Version Compatibility: Incompatibility between different