How To Fix POC_MAIN138 - &1: Cannot read master registry details from master system &2

SAP Error Message - Details

• Message type: E = Error

• Message class: POC_MAIN - Runtime Messages

• Message number: 138

• Message text: &1: Cannot read master registry details from master system &2

What causes this issue?

There was a problem in the logical system &V1&. The registry details of
master system &V2& could not be retrieved.
Remote logical master system &V2& is not available
Remote logical master system &V2& does not have POC infrastructure
packages
There was a dump in the remote logical master system when trying to read
registry details

System Response

The system cannot read federated process logs from all connected
systems.

How to fix this error?

Check the ST22 logs in the remote logical master system to see if there
are any dumps.
Check the Customizing settings in the Customzing activty
<DS:SIMG.POC_FED_LOG_SYST>Define Logical Systems for Federation</> in
the remote logical system &V1&. Verify if the RFC destination is
maintained correctly for the remote logical master system.

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_MAIN138 - &1: Cannot read master registry details from master system &2 ?

  The SAP error message POC_MAIN138 indicates that the system is unable to read master registry details from the specified master system. This error typically occurs in the context of SAP Process Orchestration (PO) or SAP Process Integration (PI) when there are issues with the configuration or connectivity to the master system.
  Causes:
  
  Connectivity Issues: There may be network issues preventing the SAP system from connecting to the master system.
  Configuration Errors: The configuration settings for the master system in the SAP system may be incorrect or incomplete.
  Authorization Issues: The user or service account being used may not have the necessary permissions to access the master registry.
  Master System Down: The master system itself may be down or not responding.
  Incorrect System ID: The system ID (SID) or other identifiers for the master system may be incorrect.
  
  Solutions:
  
  
  Check Connectivity:
  
  Ensure that the network connection between the SAP system and the master system is stable and functioning.
  Use tools like ping or telnet to verify connectivity.
  
  
  
  Review Configuration:
  
  Go to the configuration settings in the SAP system and verify that the master system details (like hostname, port, SID) are correctly configured.
  Check the settings in the Integration Directory or the relevant configuration areas in SAP PO/PI.
  
  
  
  Check Authorizations:
  
  Ensure that the user or service account has the necessary authorizations to access the master registry.
  Review roles and permissions assigned to the user.
  
  
  
  Verify Master System Status:
  
  Check if the master system is up and running. If it is down, coordinate with the system administrators to resolve the issue.
  
  
  
  Check Logs:
  
  Review the application logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  
  Restart Services:
  
  If applicable, restart the relevant services or components in both the SAP system and the master system to refresh connections.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes or documentation related to the specific version of SAP PO/PI you are using for any known issues or patches.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  System Logs: Always check system logs for more detailed error messages that can help pinpoint the issue.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.