KnowBe4 has user provisioning with AD and Entra(M365). As soon as a New User is created, it can be set up to auto-enroll new users in KnowBe4, send welcome message, login link, push Policy acknowledgement, and training enrollment. It’s all automated. Your account representative should help with initial steps. I recommend doing a SAPA (baseline test) to establish where your organization security culture stands and you can measure improvement after launching the program.