How To Fix UMK622 - Error when communicating with the requested Web server

SAP Error Message - Details

• Message type: E = Error

• Message class: UMK - Measures

• Message number: 622

• Message text: Error when communicating with the requested Web server

What causes this issue?

Could not read data from the web server.

System Response

The process was canceled by the system.

How to fix this error?

Check the following:
Verify that the URL has been entered correctly.
Make sure you entered the correct user name and password.
Check whether the proxy server is configured correctly (if necessary).
To do this, choose in the SEM menu <LS>Strategic Enterprise Management
-> Strategy Management -> Design -> Various ->
<DS:TRAN.UMC_PROXY_CUST>HTTP Connections: Proxy Details</></>.

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 UMK622 - Error when communicating with the requested Web server ?

  The SAP error message UMK622 indicates that there is a communication issue between the SAP system and the requested web server. This error can arise from various causes, and understanding these can help in troubleshooting and resolving the issue.
  Causes of UMK622 Error
  
  
  Network Issues: There may be network connectivity problems between the SAP system and the web server. This could be due to firewall settings, routing issues, or network outages.
  
  
  Web Server Configuration: The web server may not be configured correctly to accept requests from the SAP system. This could include incorrect URL settings, server downtime, or misconfigured security settings.
  
  
  SAP Configuration: The SAP system may not be configured properly to communicate with the web server. This could involve incorrect settings in the SAP Gateway or RFC (Remote Function Call) destinations.
  
  
  Authentication Issues: If the web server requires authentication, and the credentials provided by the SAP system are incorrect or missing, this can lead to communication failures.
  
  
  Protocol Mismatch: There may be a mismatch in the communication protocols being used (e.g., HTTP vs. HTTPS).
  
  
  Solutions to UMK622 Error
  
  
  Check Network Connectivity:
  
  Verify that the SAP system can reach the web server. You can use tools like ping or traceroute to check connectivity.
  Ensure that there are no firewall rules blocking the communication.
  
  
  
  Review Web Server Configuration:
  
  Check the web server logs for any errors or indications of why the request might be failing.
  Ensure that the web server is up and running and that it is configured to accept requests from the SAP system.
  
  
  
  Verify SAP Configuration:
  
  Check the RFC destination settings in the SAP system (transaction code SM59). Ensure that the destination is correctly configured with the right URL and connection parameters.
  Test the RFC connection to see if it is working properly.
  
  
  
  Authentication:
  
  If the web server requires authentication, ensure that the correct credentials are being used in the SAP configuration.
  Check if any changes have been made to the authentication method on the web server side.
  
  
  
  Protocol Settings:
  
  Ensure that the correct protocol (HTTP or HTTPS) is being used in the SAP configuration.
  If using HTTPS, ensure that the SSL certificates are correctly installed and configured.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information
  
  SAP Documentation: Refer to the official SAP documentation for more details on configuring RFC destinations and troubleshooting communication issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Logs and Traces: Utilize transaction codes like SM21 (System Log), ST22 (Dump Analysis), and SLG1 (Application Log) to gather more information about the error.
  
  By systematically checking these areas, you should be able to identify the root cause of the UMK622 error and implement an appropriate solution.