SharePoint Alerts notifications customized

Hi Victor,

There is no way to change OOTB alert templates in SharePoint Online.

But the task itself is achievable with customizations. It can be a variety of ways to get the feature:

- Workflow (let's say a notification on new item created with SPD, or a banch of items appeared in search with site workflow)

- PowerShell script to get context and send alerts running on schedule (windows schedule or Azure Web Job for instance)

- C# CSOM or Node.js REST or any business logic (also running on schedule)

There should be a UI customization too to allow users subscribing or opposite too.

So it's not something that can be taken from out of the shelf.

P.S.

Sergei Snitko can share the technique which he used recently, if it's possible to share due to some reasons.