As you know, Microsoft 365 is totally extensible in all its core workloads (SharePoint Online, Exchange Online, Microsoft Teams). To know the extensibility options for Microsoft 365, the Extensibility Lookbook for Microsoft 365 has just been released. You can browse the Extensibility Lookbook for Microsoft 365 in the following URL:
https://adoption.microsoft.com/extensibility-look-book?s=09
For each workload, we can know the extensibility options available, useful resources and code samples.
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