Access to directory possible from current application server

What causes this issue?

A logical path has been entered as a directory. Access from the current
application server to the directory entered in the transaction FILE for
the operating system of the application server is possible.

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?

This test is only relevant for the current operating system. If IDoc
processing runs in a different hardware environment, this can lead to a
different result.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.