& is not allowed (&)

What causes this issue?

The current status of object '&V2&' prohibits business transaction '&V1&
' ('&V3&').

How to fix this error?

To process business transaction '&V1&', you first have to change the
status of object '&V2&' to allow the transaction '&V1&'.
PERFORM SET_PARAMETER_VNG IN PROGRAM RBSVINFV
USING &V3&
ENDPERFORM
This gives you an overview of the system and user statuses that affect
the transaction. A transaction can only be executed if there is at least
one status that allows it and there is no status that forbids it.
<DS:TRAS.BSV1>Transaction analysis</>

Error message extract from SAP system. Copyright SAP SE.