Shared account: setup an integration account for someone else
Head over to the Integrations page and click on the integration of your choosing, for example LinkedIn:
Click on Connect a New Account:
Instead of clicking on "Configure My Account", click on "Share this with someone else":
It will generate a link that you can copy-paste (you should just have to click on it).
The person you're sending the link to will see something like this*
* Depending on the type of integration, the setup might vary.
You can refer and send the appropriate setup link by searching the help center.
Once the user synchronizes its account, he/she will see the following validation text: