@@ -659,20 +659,17 @@ methods:
659659 **Important**:
660660
661661
662- - Legacy Exchange tokens are deprecated. Legacy Exchange [user
663- identity](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
664- and
665- [callback](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
666- tokens have been turned off by default for most Exchange Online tenants.
667- Administrators can reenable legacy tokens for tenants and add-ins until
668- June 2025. In October 2025, legacy tokens will be completely turned off
669- for all tenants. This is part of [Microsoft's Secure Future
670- Initiative](https://blogs.microsoft.com/on-the-issues/2023/11/02/secure-future-initiative-sfi-cybersecurity-cyberattacks/)<!--
671- -->, which gives organizations the tools needed to respond to the current
672- threat landscape. Exchange user identity tokens will still work for
673- Exchange on-premises. Nested app authentication (NAA) is the recommended
674- approach for tokens going forward. For more information, see the [FAQ
675- page](https://aka.ms/naafaq)<!-- -->.
662+ - Legacy Exchange Online [user identity
663+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
664+ and [callback
665+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
666+ are no longer supported and are turned off across all Microsoft 365
667+ tenants. If an Outlook add-in requires delegated user access or user
668+ identity, we recommend using [MSAL (Microsoft Authentication Library) and
669+ nested app authentication
670+ (NAA)](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)<!--
671+ -->. Exchange user identity tokens are still supported for Exchange
672+ on-premises.
676673
677674
678675 - This method isn't supported in Outlook on Android or on iOS. For more
@@ -2196,20 +2193,17 @@ methods:
21962193 **Important**:
21972194
21982195
2199- - Legacy Exchange tokens are deprecated. Legacy Exchange [user
2200- identity](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
2201- and
2202- [callback](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
2203- tokens have been turned off by default for most Exchange Online tenants.
2204- Administrators can reenable legacy tokens for tenants and add-ins until
2205- June 2025. In October 2025, legacy tokens will be completely turned off
2206- for all tenants. This is part of [Microsoft's Secure Future
2207- Initiative](https://blogs.microsoft.com/on-the-issues/2023/11/02/secure-future-initiative-sfi-cybersecurity-cyberattacks/)<!--
2208- -->, which gives organizations the tools needed to respond to the current
2209- threat landscape. Exchange user identity tokens will still work for
2210- Exchange on-premises. Nested app authentication (NAA) is the recommended
2211- approach for tokens going forward. For more information, see the [FAQ
2212- page](https://aka.ms/naafaq)<!-- -->.
2196+ - Legacy Exchange Online [user identity
2197+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
2198+ and [callback
2199+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
2200+ are no longer supported and are turned off across all Microsoft 365
2201+ tenants. If an Outlook add-in requires delegated user access or user
2202+ identity, we recommend using [MSAL (Microsoft Authentication Library) and
2203+ nested app authentication
2204+ (NAA)](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)<!--
2205+ -->. Exchange user identity tokens are still supported for Exchange
2206+ on-premises.
22132207
22142208
22152209 - The Outlook REST v2.0 and beta endpoints are now deprecated. However,
@@ -2322,9 +2316,9 @@ methods:
23222316 - `GenericTokenError: An internal error has occurred.` - In Exchange
23232317 Online environments, this error occurs when the token can't be retrieved
23242318 because legacy Exchange tokens for Outlook add-ins are turned off. We
2325- recommend using NAA as a single sign-on solution for your add-in. For
2326- guidance on how to implement NAA, see the [FAQ
2327- page](https://aka.ms/naafaq)<!-- --> .
2319+ recommend using
2320+ [NAA](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)
2321+ as a single sign-on solution for your add-in .
23282322
23292323
23302324 - `HTTPRequestFailure: The request has failed. Please look at the
@@ -2335,8 +2329,9 @@ methods:
23352329 at the diagnostics object for more information.` - In Exchange Online
23362330 environments, this error occurs when the token can't be retrieved because
23372331 legacy Exchange tokens for Outlook add-ins are turned off. We recommend
2338- using NAA as a single sign-on solution for your add-in. For guidance on
2339- how to implement NAA, see the [FAQ page](https://aka.ms/naafaq)<!-- -->.
2332+ using
2333+ [NAA](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)
2334+ as a single sign-on solution for your add-in.
23402335
23412336
23422337 - `NetworkError: The user is no longer connected to the network. Please
@@ -2408,20 +2403,17 @@ methods:
24082403 **Important**:
24092404
24102405
2411- - Legacy Exchange tokens are deprecated. Legacy Exchange [user
2412- identity](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
2413- and
2414- [callback](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
2415- tokens have been turned off by default for most Exchange Online tenants.
2416- Administrators can reenable legacy tokens for tenants and add-ins until
2417- June 2025. In October 2025, legacy tokens will be completely turned off
2418- for all tenants. This is part of [Microsoft's Secure Future
2419- Initiative](https://blogs.microsoft.com/on-the-issues/2023/11/02/secure-future-initiative-sfi-cybersecurity-cyberattacks/)<!--
2420- -->, which gives organizations the tools needed to respond to the current
2421- threat landscape. Exchange user identity tokens will still work for
2422- Exchange on-premises. Nested app authentication (NAA) is the recommended
2423- approach for tokens going forward. For more information, see the [FAQ
2424- page](https://aka.ms/naafaq)<!-- -->.
2406+ - Legacy Exchange Online [user identity
2407+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
2408+ and [callback
2409+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
2410+ are no longer supported and are turned off across all Microsoft 365
2411+ tenants. If an Outlook add-in requires delegated user access or user
2412+ identity, we recommend using [MSAL (Microsoft Authentication Library) and
2413+ nested app authentication
2414+ (NAA)](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)<!--
2415+ -->. Exchange user identity tokens are still supported for Exchange
2416+ on-premises.
24252417
24262418
24272419 - You can pass both the token and either an attachment identifier or item
@@ -2474,9 +2466,9 @@ methods:
24742466 - `GenericTokenError: An internal error has occurred.` - In Exchange
24752467 Online environments, this error occurs when the token can't be retrieved
24762468 because legacy Exchange tokens for Outlook add-ins are turned off. We
2477- recommend using NAA as a single sign-on solution for your add-in. For
2478- guidance on how to implement NAA, see the [FAQ
2479- page](https://aka.ms/naafaq)<!-- --> .
2469+ recommend using
2470+ [NAA](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)
2471+ as a single sign-on solution for your add-in .
24802472
24812473
24822474 - `HTTPRequestFailure: The request has failed. Please look at the
@@ -2487,8 +2479,9 @@ methods:
24872479 at the diagnostics object for more information.` - In Exchange Online
24882480 environments, this error occurs when the token can't be retrieved because
24892481 legacy Exchange tokens for Outlook add-ins are turned off. We recommend
2490- using NAA as a single sign-on solution for your add-in. For guidance on
2491- how to implement NAA, see the [FAQ page](https://aka.ms/naafaq)<!-- -->.
2482+ using
2483+ [NAA](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)
2484+ as a single sign-on solution for your add-in.
24922485
24932486
24942487 - `NetworkError: The user is no longer connected to the network. Please
@@ -2903,20 +2896,17 @@ methods:
29032896 **Important**:
29042897
29052898
2906- - Legacy Exchange tokens are deprecated. Legacy Exchange [user
2907- identity](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
2908- and
2909- [callback](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
2910- tokens have been turned off by default for most Exchange Online tenants.
2911- Administrators can reenable legacy tokens for tenants and add-ins until
2912- June 2025. In October 2025, legacy tokens will be completely turned off
2913- for all tenants. This is part of [Microsoft's Secure Future
2914- Initiative](https://blogs.microsoft.com/on-the-issues/2023/11/02/secure-future-initiative-sfi-cybersecurity-cyberattacks/)<!--
2915- -->, which gives organizations the tools needed to respond to the current
2916- threat landscape. Exchange user identity tokens will still work for
2917- Exchange on-premises. Nested app authentication (NAA) is the recommended
2918- approach for tokens going forward. For more information, see the [FAQ
2919- page](https://aka.ms/naafaq)<!-- -->.
2899+ - Legacy Exchange Online [user identity
2900+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
2901+ and [callback
2902+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
2903+ are no longer supported and are turned off across all Microsoft 365
2904+ tenants. If an Outlook add-in requires delegated user access or user
2905+ identity, we recommend using [MSAL (Microsoft Authentication Library) and
2906+ nested app authentication
2907+ (NAA)](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)<!--
2908+ -->. Exchange user identity tokens are still supported for Exchange
2909+ on-premises.
29202910
29212911
29222912 - The `getUserIdentityTokenAsync` method returns a token that you can use
@@ -2940,9 +2930,9 @@ methods:
29402930 - `GenericTokenError: An internal error has occurred.` - In Exchange
29412931 Online environments, this error occurs when the token can't be retrieved
29422932 because legacy Exchange tokens for Outlook add-ins are turned off. We
2943- recommend using NAA as a single sign-on solution for your add-in. For
2944- guidance on how to implement NAA, see the [FAQ
2945- page](https://aka.ms/naafaq)<!-- --> .
2933+ recommend using
2934+ [NAA](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)
2935+ as a single sign-on solution for your add-in .
29462936
29472937
29482938 - `HTTPRequestFailure: The request has failed. Please look at the
@@ -2953,8 +2943,9 @@ methods:
29532943 at the diagnostics object for more information.` - In Exchange Online
29542944 environments, this error occurs when the token can't be retrieved because
29552945 legacy Exchange tokens for Outlook add-ins are turned off. We recommend
2956- using NAA as a single sign-on solution for your add-in. For guidance on
2957- how to implement NAA, see the [FAQ page](https://aka.ms/naafaq)<!-- -->.
2946+ using
2947+ [NAA](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)
2948+ as a single sign-on solution for your add-in.
29582949
29592950
29602951 - `NetworkError: The user is no longer connected to the network. Please
@@ -3235,20 +3226,17 @@ methods:
32353226 **Important**:
32363227
32373228
3238- - Legacy Exchange tokens are deprecated. Legacy Exchange [user
3239- identity](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
3240- and
3241- [callback](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
3242- tokens have been turned off by default for most Exchange Online tenants.
3243- Administrators can reenable legacy tokens for tenants and add-ins until
3244- June 2025. In October 2025, legacy tokens will be completely turned off
3245- for all tenants. This is part of [Microsoft's Secure Future
3246- Initiative](https://blogs.microsoft.com/on-the-issues/2023/11/02/secure-future-initiative-sfi-cybersecurity-cyberattacks/)<!--
3247- -->, which gives organizations the tools needed to respond to the current
3248- threat landscape. Exchange user identity tokens will still work for
3249- Exchange on-premises. Nested app authentication (NAA) is the recommended
3250- approach for tokens going forward. For more information, see the [FAQ
3251- page](https://aka.ms/naafaq)<!-- -->.
3229+ - Legacy Exchange Online [user identity
3230+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#exchange-user-identity-token)
3231+ and [callback
3232+ tokens](https://learn.microsoft.com/office/dev/add-ins/outlook/authentication#callback-tokens)
3233+ are no longer supported and are turned off across all Microsoft 365
3234+ tenants. If an Outlook add-in requires delegated user access or user
3235+ identity, we recommend using [MSAL (Microsoft Authentication Library) and
3236+ nested app authentication
3237+ (NAA)](https://learn.microsoft.com/office/dev/add-ins/develop/enable-nested-app-authentication-in-your-add-in)<!--
3238+ -->. Exchange user identity tokens are still supported for Exchange
3239+ on-premises.
32523240
32533241
32543242 - To enable the `makeEwsRequestAsync` method to make EWS requests, the
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