Input parameters &1, &2 and &3 required in function module &4

What causes this issue?

In order to execute the function correctly, the function module requires
all parameters. At least one of these parameters was not transferred to
the function module.

System Response

Processing is terminated.

How to fix this error?

Send a problem message to SAP with the following entries:
Message text and message number
Transaction/report
Entries that lead to the error

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.