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M365 Subscription required to build Office add-ins
Hello, I'm looking to expand our product offering by creating an extension for Microsoft Outlook that integrates into our product. When looking at the docs for this, it says the following is ...
For creating an Outlook integration with your product, it is advised to have at least a Microsoft 365 Business Standard plan. This plan offers the APIs and other resources required for developing Office Add-ins, including those for Outlook. Furthermore, it allows Office on the web, which is necessary to test and deploy your extension.
The Microsoft 365 Business Premium and Enterprise plans may be useful if you are looking for more sophisticated features or extra development resources. Nevertheless, the Microsoft 365 Business Standard plan should be adequate for most development purposes.