4,387 questions
You would create an outlook addin which are written in JavaScript and work with the app or online version. See
https://learn.microsoft.com/en-us/office/dev/add-ins/quickstarts/outlook-quickstart-yo
Add a new tab in the web outlook
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(108.80000000000001, 88%, 20%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ED%3C/text%3E%3C/svg%3E)
Dani_S
4,501
Reputation points
Hi,
Aim: I want to add a new tab in the web outlook, the tab will be in the ribbon.
There is any way to achieve that the tab will includes a buttons that trigger an API for sending email or do something else.
Thanks in advance,
Microsoft 365 and Office | Development | Other
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Dani_S 4,501 Reputation points
2025-04-10T07:29:15.3866667+00:00 This is not.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 61%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBS%3C/text%3E%3C/svg%3E)
Bruce (SqlWork.com) 78,086 Reputation points Volunteer Moderator2025-04-03T19:37:43.8066667+00:00 -
Dani_S 4,501 Reputation points
2025-04-04T07:05:52.29+00:00 We want a new tab that include new buttons and add our funcuality.
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(307.2, 78%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAT%3C/text%3E%3C/svg%3E)
Amjad Tarif 0 Reputation points2025-04-06T11:30:56.9566667+00:00 We want the tab to be here where the red mark, the new tab, will be on the home page of outlook.
In this tab, we want to customize the ribbon that have own functionality and option to send mail from our system.
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Dani_S 4,501 Reputation points
2025-04-07T17:55:55.59+00:00 Can you please answer?
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Dani_S 4,501 Reputation points
2025-04-09T17:42:39.5133333+00:00 Any news?
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Dani_S 4,501 Reputation points
2025-04-10T06:21:49.1766667+00:00 Can you please help?
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Dani_S 4,501 Reputation points
2025-04-10T16:53:19.1933333+00:00 I want new tab to add my logic.
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Dani_S 4,501 Reputation points
2025-04-15T03:40:36.24+00:00 We want a new tab that include new buttons and add our funcuality.
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Dani_S 4,501 Reputation points
2025-04-15T18:51:27.7566667+00:00 @Bruce (SqlWork.com) can you please help?
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Dani_S 4,501 Reputation points
2025-04-21T04:53:52.1933333+00:00 Does any one can help?
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Dani_S 4,501 Reputation points
2025-04-21T16:18:01.3133333+00:00 @Bruce (SqlWork.com) can you please answer?
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Bruce (SqlWork.com) 78,086 Reputation points Volunteer Moderator
2025-04-21T18:56:19.71+00:00 You define the new custom tab in your add in’s manifest file:
https://learn.microsoft.com/en-us/javascript/api/manifest/customtab?view=common-js-preview
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