Application registrations portal has been deprecated for registering and managing converged applications since May 2019 and this functionality will be removed starting September 2019. We recommend that you manage your existing applications and register new applications by using the App registrations (now Generally Available) experience in the Azure portal. Click this banner to launch the new and improved experience.
今天发现使用 Application registrations portal 已经无法创建新应用了。
这是微软最近的公告: