The Office platform is our way of enabling developers everywhere to help our customers get more done. Developers can bring their own apps and services directly into Outlook using add-ins, connectors, and actionable messages, and they’ve built some amazing stuff so far. For instance, you can now add a lead from an email directly to your CRM system, digitally sign important documents you receive as attachments, and update your notes, all right from Outlook.
Up till now, Outlook add-ins have been available to Outlook users on the web and Windows, and we’ve recently expanded add-in support to Outlook for Mac as part of the Office Insider program. We’re now excited to bring add-ins to Outlook mobile, starting with Outlook on IOS, with support for Android coming soon.
With add-ins, developers can make Outlook, called “the best mobile email app” by Wired, even better, by extending it with their own apps and services.
Hear directly from developers at Nimble and GIPHY on their experience of building for Outlook.
|Nimble - Get real time insights about your email contacts||GIPHY - Make your emails fun and expressive|
Build your own add-ins for Outlook on iOS
With today’s launch, Outlook on iOS includes add-ins from several initial partners. And starting today , we’re opening the platform up so that every developer can add mobile support to their add-ins with just a few steps:
- Add-ins that support mobile must pass a strict set of validation criteria, so we encourage you to share your scenario ideas and mockups for pre-approval before you start implementation, using the form at https://aka.ms/outlookmobileaddin.
- Decide what scenarios to enable on mobile. Not every action makes sense on the small screen, so be sure you’re highlighting the most important functionality of your add-in for mobile. Keep in mind that only mail read scenarios are supported right now.
- Update your manifest to declare support for the Mobile Form Factor and define the actions you came up with in step 1.
- If applicable, make sure any backend calls to the mailbox are using our REST API. EWS requests are not supported on mobile.
- Build mobile-specific UI for the small screen using our design guidelines.
- Submit your add-in to the Office Store for validation. You can find instructions here.
To learn more, visit the Outlook mobile add-ins section of dev.office.com.