This article will help you find your Segment write key.

First go to your Segment account and click sources, then Add Source button:

Select Javascript and then click connect on the menu that appears:

Enter in your JuniperWeb URL and whatever you want to name it, and click Add Source:

Go to the Settings button on the source page, enter in the info and Save Changes:

In the menu to the left, click on API keys and your write key will appear:

Once you have it, please log into Juniper Web, go to Settings > Integrations