How To Fix PO781 - Cannot read list of frontend printers

SAP Error Message - Details

• Message type: E = Error

• Message class: PO - Spooler message

• Message number: 781

• Message text: Cannot read list of frontend printers

What causes this issue?

The system attempted to use a RFC to read the list of printers defined
on the frontend and failed.

System Response

The system suggests you use the printer maintained for the output
device.

How to fix this error?

Check the installation.

Procedure for System Administrators

Make sure the LPRINT program is installed on the frontend. In addition,
an RFC connection must be possible using the destination "SAPGUI" or
"LOCAL_PRINT".

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PO781 - Cannot read list of frontend printers ?

  The SAP error message "PO781 Cannot read list of frontend printers" typically occurs when the SAP system is unable to retrieve the list of available frontend printers for a user. This can happen for several reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Network Issues: There may be connectivity problems between the SAP GUI and the printer server.
  Printer Configuration: The frontend printer may not be properly configured in the SAP system or on the client machine.
  User Authorization: The user may not have the necessary authorizations to access the printer list.
  SAP GUI Settings: Incorrect settings in the SAP GUI can prevent the system from accessing the printer list.
  Frontend Printer Driver Issues: The printer drivers on the client machine may be outdated or not installed correctly.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the client machine has a stable network connection and can communicate with the printer server.
  Verify Printer Configuration:
  
  Go to the SAP GUI and check the printer settings.
  Ensure that the frontend printer is correctly configured and available.
  
  
  User Authorizations: Check if the user has the necessary authorizations to access printers. This may require assistance from a system administrator.
  SAP GUI Settings:
  
  Open the SAP GUI options and navigate to the "Printing" section.
  Ensure that the settings for frontend printing are correctly configured.
  
  
  Update Printer Drivers: Make sure that the latest printer drivers are installed on the client machine. You can check the manufacturer's website for updates.
  Restart SAP GUI: Sometimes, simply restarting the SAP GUI can resolve temporary issues.
  Check SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP Notes often provide patches or additional troubleshooting steps.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for more details on printer configuration and troubleshooting.
  SAP Community: The SAP Community forums can be a valuable resource for finding solutions to similar issues encountered by other users.
  System Administrator: If the issue persists, it may be necessary to involve a system administrator or SAP Basis consultant to investigate further.
  
  By following these steps, you should be able to diagnose and resolve the "PO781 Cannot read list of frontend printers" error in SAP.