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SharePoint Add-Ins are retiring what can you do

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Microsoft has announced that they are retiring the use of SharePoint Add-ins and recommend using SharePoint framework-based solutions (SPFx). This affects our Sintel Forms Add-in which is currently available from Microsoft AppSource.


What this means for you

As Sintel Forms is currently a SharePoint Add-in our customers will need to migrate to a new version. The good news is that we are already working on the new version and we will have it released long before the existing SharePoint Add-Ins stop working.


In Summary

  1. We are aware of the changes that are coming and have already started working on a new version of Sintel Forms.
  2. This will not adversely affect any customers who are already using the existing app until April 2026 as the SharePoint Add-in will continue to be supported until then.
  3. In 2024 we will release a new version of Sintel Forms and it will be available on AppSource.


For more information on this process please refer to the Modernization guidance for existing SharePoint Add-In model implementations in Microsoft 365.

If you have any concerns about the Microsoft announcement or our new version of Sintel Forms, feel free to drop us an email at

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