journal entries needed for outside billing service

Hi, basically all billing is done thru outside vendor and no way to import to qb, so I remember in another job in another life that I used to do j/e that credited sales, debited a/r, then when they were paid I debited cash and credited a/r, but I keep thinking there is something else I am supposed to do and accountant is unavailable right now so any advice is helpful, thanks.