Nested app auth requirement set
Requirement sets are named groups of API members. Office Add-ins use requirement sets specified in the manifest or use a runtime check to determine whether an Office application supports APIs that an add-in needs. For more information, see Office versions and requirement sets.
Office Add-ins run across multiple versions of Office. The following table lists the nested app auth (NAA) requirement set, the supported Office client applications, and the minimum builds or versions for those applications where applicable.
| Requirement set | Outlook on the web | Outlook on Windows (Microsoft 365 subscription) |
Outlook on Windows (retail perpetual) |
Outlook on Windows (volume-licensed perpetual) |
Outlook on Mac | Outlook on iOS | Outlook on Android |
|---|---|---|---|---|---|---|---|
| NestedAppAuth 1.1 | Supported | Version 2409 (Build 18025.20000) | Version 2501 (Build 18429.20132) | Version 2408 (Build 17932.20222) | Version 16.89 (Build 24090815) | Build v4.2433.0 | Build v4.2433.0 |
Important
- Currently, the NestedAppAuth 1.1 requirement set is supported in Office on the web only for documents that are opened from Microsoft SharePoint Online and OneDrive.
- In Outlook, the NestedAppAuth 1.1 requirement set isn't supported if the add-in is loaded in an Outlook.com or Gmail mailbox.
Supported accounts and hosts
NAA supports both Microsoft Accounts and Microsoft Entra ID (work/school) identities. It doesn't support Azure Active Directory B2C for business-to-consumer identity management scenarios. The following table explains the current support by platform. Platforms listed as generally available (GA) are ready for production usage in your add-in.
| Application | Web | Windows | Mac | iOS/iPad | Android |
|---|---|---|---|---|---|
| Excel | In preview | In preview | In preview | In preview on iPad | Not applicable |
| Outlook | GA | GA in Current Channel, Monthly Enterprise Channel, Semi-Annual Channel. Preview in Semi-Annual Channel Extended. | GA | GA (iOS) | GA |
| PowerPoint | In preview | In preview | In preview | In preview on iPad | Not applicable |
| Word | In preview | In preview | In preview | In preview on iPad | Not applicable |
Important
To use NAA on platforms that are still in preview (Word, Excel, and PowerPoint), join the Microsoft 365 Insider Program (https://insider.microsoft365.com/join) and choose Current Channel (Preview). Don't use NAA in production add-ins for any preview platforms. We invite you to try out NAA in test or development environments and welcome feedback on your experience through GitHub (see the Feedback section at the end of this page).
Outlook and NestedAppAuth requirement set
To require the NestedAppAuth requirement set 1.1 in your Outlook add-in code, check if it's supported by calling isSetSupported('NestedAppAuth', '1.1').
Declaring it in the Outlook add-in's manifest isn't supported. You can also determine if the API is supported by checking that it's not undefined.
For further details, see Using APIs from later requirement sets.
Office versions and build numbers
To find out more about versions and build numbers, see:
- Version and build numbers of update channel releases for Microsoft 365 clients
- What version of Office am I using?
Office Common API requirement sets
For information about Common API requirement sets, see Office Common API requirement sets.
See also
Office Add-ins