Logical directory '&' has not been defined for operating system '&'

What causes this issue?

As the "logical directory" flag is set, the system checks whether the
logical directory is defined in the SAP system.
The test reveals that the logical path &v1& in transaction FILE is not
maintained for the current operating system.

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?

It depends on the environment in which the processing runs. If it is the
same operating system environment, the logical directory &v1& must be
defined for operating system &v2& with the transaction
<DS:TRAN.FILE>FILE</>.
If it is another operating system environment, you must check in
transaction FILE whether the logical directory &v1& has been defined for
the corresponding operating system.
Otherwise, it can lead to run time errors in IDoc processing.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.