How To Fix SG812 - Physical file path cannot start with a parameter.

SG812 - Overview

• Message type: E = Error

• Message class: SG - Global Pool for Cross-Application Developments

• Message number: 812

• Message text: Physical file path cannot start with a parameter.

What causes this issue?

You are trying to enter a physical file path that begins with <(>
<<)>PARAM_X>. For security reasons this is not possible because it could
be used by an attacker for a directory traversal attack.

System Response

A physical file path beginning with <(><<)>PARAM_X> is not permitted.

How to fix this error?

Add a path in front of <(><<)>PARAM_X>, for example C:\TEMP\<(>
<<)>PARAM_1>, or "/tmp/<(><<)>PARAM_1> for UNIX.

Error message extract from SAP system. Copyright SAP SE.

SG812 - Details

• The SAP error message SG812, which states "Physical file path cannot start with a parameter," typically occurs when there is an issue with the way a file path is specified in a configuration or program. This error is often related to the use of parameters in the file path, which is not allowed in certain contexts.
  
  Cause:
  
  Incorrect File Path Specification: The error usually arises when the file path for a physical file is incorrectly defined, starting with a parameter (e.g., & or %).
  Dynamic File Paths: If the file path is being constructed dynamically and inadvertently starts with a parameter, it can trigger this error.
  
  Configuration Issues: In some cases, the error may stem from incorrect configuration settings in the SAP system or in the specific transaction being executed.
  
  
  Solution:
  
  
  Check File Path: Review the file path specified in the relevant configuration or program. Ensure that it does not start with a parameter. The path