Begin of the insertion**ON HOLD: Requires web app work on API**

<br>

End of the insertion **As** a mobile user
**I want to** see a WorkPackage in the mobile app when I click a link in my email on mobile

**Problem:** We have to specify each subdomain separately in the app which hardly possible to achieve. also we can&#39;t specify on-premice domains.

**Available options**

* use url schema instead of http link.
in this case we don&#39;t have to rely on domain names. Also we are able to configure links as we need:

i.e.: `openproject://workpackage/12345`
&nbsp;or `openproject://notifications` Begin of the insertion

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End of the deletion * use redirect links. So we will stick always to one domain and then redirect to a correct instance or to the app

i.e.:  [`https://openproject.com/deep-linking?instance:custom-domain;content:workpackage/12345`](https://openproject.com/deep-linking?instance:custom-domain;content:workpackage/12345) Begin of the insertion

End of the insertion Begin of the deletion


End of the deletion * wild option (most likely useless) - predefine a huge list of possible associated domains in the app. Begin of the insertion

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End of the deletion * maybe inside the email we can add a separate button &quot;see in the app&quot; that will have a dedicated url?