How To Fix IM303 - Invalid key while processing print protocol

IM303 - Overview

• Message type: E = Error

• Message class: IM - Maintenance notifications

• Message number: 303

• Message text: Invalid key while processing print protocol

What causes this issue?

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

System Response

How to fix this error?

Inform your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IM303 - Invalid key while processing print protocol ?

  The SAP error message IM303 "Invalid key while processing print protocol" typically occurs when there is an issue with the print protocol configuration or the data being sent to the print system. This error can arise in various scenarios, such as when trying to print documents or reports from SAP.
  Causes:
  
  Invalid Print Protocol Configuration: The print protocol settings in the SAP system may not be correctly configured or may be missing.
  Incorrect Printer Settings: The printer settings in SAP may not match the actual printer configuration, leading to communication issues.
  Missing or Incorrect Data: The data being sent to the printer may be incomplete or formatted incorrectly, causing the print job to fail.
  Authorization Issues: The user may not have the necessary authorizations to access the print protocol or the printer.
  Network Issues: There may be network connectivity problems between the SAP system and the printer.
  
  Solutions:
  
  
  Check Print Protocol Configuration:
  
  Go to transaction SPAD (Spool Administration) and