How To Fix POC_MAIN131 - System error; cannot connect to the master registry

SAP Error Message - Details

• Message type: E = Error

• Message class: POC_MAIN - Runtime Messages

• Message number: 131

• Message text: System error; cannot connect to the master registry

What causes this issue?

You want to connect to the master registry. This, however, is not
possible for one of the following reasons:
Incorrect logical system &V1& is configured
Incorrect RFC destination &V2& is configured

System Response

How to fix this error?

Check the Customizing settings in the following activities under
Customizing for <ZK>Process Observer</>:
<ZK>General Settings</> -> <ZK>Federation</> -> <ZK>Define Logical
Systems for Federation</>
<ZK>Parameter Definition</> -> <ZK>Set Up Process Registry</>
If the problem persists, check RFC destinations configuration in
transaction SM59.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message POC_MAIN131 - System error; cannot connect to the master registry ?

  The SAP error message POC_MAIN131 indicates that there is a system error preventing a connection to the master registry. This error typically occurs in the context of SAP Process Orchestration (PO) or SAP Process Integration (PI) when the system is unable to access the necessary registry for managing integration scenarios.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the master registry.
  Configuration Errors: Incorrect configuration settings in the SAP system or the master registry can lead to connection failures.
  Service Availability: The master registry service may be down or not running, preventing connections.
  Authorization Issues: The user or service account attempting to connect may not have the necessary permissions to access the master registry.
  Firewall Restrictions: Firewalls or security settings may be blocking the connection to the master registry.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the SAP system can reach the master registry. You can use tools like ping or telnet to test connectivity.
  Verify Configuration: Review the configuration settings in the SAP system related to the master registry. Ensure that the URLs, ports, and other parameters are correctly set.
  Check Service Status: Verify that the master registry service is running. If it is down, restart the service and check the logs for any errors.
  Review User Permissions: Ensure that the user or service account has the necessary permissions to access the master registry. Adjust roles and authorizations as needed.
  Firewall and Security Settings: Check firewall rules and security settings to ensure that they are not blocking the connection to the master registry. Adjust settings as necessary.
  Consult Logs: Review the SAP application logs and the master registry logs for any additional error messages or clues that can help diagnose the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to POC_MAIN131 for any specific patches or updates that may address this issue.
  Documentation: Refer to the official SAP documentation for Process Orchestration and Process Integration for detailed configuration and troubleshooting steps.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.