Theologians assessed Toniolo's writings to assess if there was an adherence to doctrine and approved them of possessing no doctrinal errors in a decree issued on 1 June 1947. The formal introduction to the cause came under Pope Pius XII on 7 January 1951 in which Toniolo became titled as a Servant of God. The Congregation for Rites later validated the informative and apostolic processes on 8 July 1955.
Theologians evaluated Toniolo's works to confirm doctrinal compliance and approved them without errors, issuing a decree on June 1, 1947. The formal initiation of his cause was announced by Pope Pius XII on January 7, 1951, with the title Servant of God. Later, the Congregation for Rites validated the informative and apostolic procedures in July 1955.