Sep 15, 2017 · The SharePoint Online Client Components SDK can be used to enable development with SharePoint Online. Notice that we do recommend using rather NuGet packages than installing CSOM assemblies to GAC. Jul 26, 2017 · I was recently engaged in a long running critical case for a customer that exposed some opportunities for further discussion on SharePoint Add-In Authentication. Here is the scenario: Your organization leverages a Provider Hosted SharePoint Add-in, whose secret is close to expiring. Following the documented process for Generating a New Client Secret you create a...

Aug 24, 2018 · By default expiration is 1 year. You can easily replace it afterwards, there is an article out there - Replace an expiring client secret in a SharePoint Add-in. You can even generate a new one with maximum of three years of expiration. Sometimes it’s inconvenient, especially if you have to manage multiple SharePoint apps with different ...