Command &4 unknown in system &1

What causes this issue?

An error occurred in the TMS communication layer of the following SAP
system:
System: <LS>&V2&</>
Command: <LS>&V3&</>
Error: Function <LS>&V4&</> unknown

System Response

The function terminates.

How to fix this error?

The release level of the specified system does not support this command
or there is a programming error.

Error message extract from SAP system. Copyright SAP SE.