What is the future for remote event receivers for SharePoint online?
We are migrating some applications from SharePoint 2019 to SharePoint online. The applications use remote event receivers using synchronous events. We can’t migrate to webhooks because they don’t support synchronous events. So, we are also migrating the remote event receivers to SharePoint online. They work fine against online. We are using ACS to connect to SharePoint. However, I was having a discussion on Github and Vesa mentioned that ACS will be deprecated. See the question here: https://github.com/SharePoint/sp-dev-docs/issues/9235 We are now rebuilding the remote event receivers to use an Azure AD app. This also works for us. I am wondering what is the future of remote event receivers in general? Will they stay supported for SharePoint online? Or should we rethink about our migration project.
SharePoint Online - Add custom field to list settings page
Is it possible to add a link to an external page to configure app-specific settings for a list to a SharePoint List settings page? This is for SharePoint Online using a provider-hosted SharePoint Add-in. I tried using the directions provided here, which could achieve exactly what I'm looking for, but it doesn't work it seems: https://www.c-sharpcorner.com/article/add-custom-action-to-listlibrary-settings-in-sharepoint-using-visual-studio-fea2/#:~:text=Click%20Custom%20Action%20menu%20in,Click%20OK..