How often does the Outlook exchange server pull the web-addin manifest if they are "sideload" installed via URL

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votes

If the web-addin is not submitted to the Office store, but simply installed by the users via its URL. So the developer update the manifest content without changing its URL. Wonder how long does this change (or will it ever) get to the users?

Have been reading the Outlook web addin manifest document on Office Dev Ceneter, but did not find anything about it.

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office-jsoutlook-web-addins

1 Answers

1
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The add-in manifest is accessed via its URL on installation and after that the XML for the manifest is stored in Exchange. In order to update the manifest in Exchange, you will need to install the add-in again using the same URL.

Exchange On-Premise

You can install add-ins for all users in an organization in Exchange through Exchange Control Panel for On-Premise users (Source).

Exchange Online / Office 365

You can install add-ins for users through centralized deployment for Office 365 users (Source). There are some considerations for deploying an add-in for Office 365:

  • Users must be using Office 2016
  • Users must be in the top level group, as nested groups are not supported.
  • Users' mailboxes must be hosted in Exchange Multi-Tenant or Exchange Dedicated vNext

Outlook.com

In order to update add-in manifests for Outlook.com users, the manifest must be resubmitted to to the Office store.