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 examined Toniolo's writings to ensure adherence to doctrine and found them error-free, issuing a decree on June 1, 1947. The formal start of his cause was declared by Pope Pius XII on January 7, 1951, naming him as a Servant of God. Subsequently, the Congregation for Rites validated the informative and apostolic procedures in July 1955.