ABAP RAP - failed response parameter - available causes

[clemrngt]

Hello all,

Today, in FAILED response parameter of a validation in RAP, we can put some causes in %fail :

not_found
locked
unauthorized
disabled
readonly
dependency
conflict
unspecific

Can we have more causes ? For example 422-unprocessable ?  I can see it's commented in the enum

If no, do we know why we don't have more causes ?

EXAMPLE :

I put the enum field "conflict" on failed response parameter :

With this, the HTTP code in the response is 409 - Conflict

I would like to do the same but with 422

thx !