I'm developing add-ins for Sharepoint Online and I got a question. Did Microsoft ever said that my add-in code will always be supported ?

I'm wondering because they are always pushing new features to Office 365.

  • Now, any server side code-based sandbox solutions/custom webparts are not supporting any more in SP Online. But in SharePoint provider hosted app you can use code/C#. Apart from this, You can use JSOM, REST API based solutions, SharePoint hosted apps in SharePoint online. Oct 12, 2016 at 6:15
  • Thanks for your answer but I already knew that. What I want to know is if I can use for example a function in CSOM and be sure that it will always be supported in SharePoint Online.
    – Shark
    Oct 12, 2016 at 8:56


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