How To Fix SG823 - Instance &1, validation of logical file names is not active

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 823

• Message text: Instance &1, validation of logical file names is not active

What causes this issue?

The value <ZH>off</> of the instance profile parameter <ZH>
abap/path_normalization</> deactivates the check logic of the function
module FILE_VALIDATE_NAME. This deactivates an important security
function that protects against directory file traversal.

System Response

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

How to fix this error?

Set the instance profile parameter abap/path_normalization to a suitable
value. For more information, see SAP Note 2551541.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.