2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/74756Let $Ω$ be a bounded symmetric domain except the two exceptional domains of ${\Bbb C}^N$ and $ϕ$ a holomorphic self-map of $Ω.$ This paper gives a sufficient and necessary condition for the composition operator $C_ϕ$ induced by $ϕ$ to be compact on the Bloch space $β(Ω)$.16Complex Variables47B33; 32A30; 32A37; 47B38text