So you've finished setting up your web widget and are ready to assign it to a campaign?
To do that, just edit the campaign that you want to use it with, then go to Step 2. Find the Subscription by Widget option and enable it.
Next, go back to the Web Widget section, and you'll find a yellow icon with "</>" associated with the widget that you want to use.
That icon/option will give you the Embed Code of the Widget. Click that. then select the campaign that you want to generate the code for, then click on Get Embed Code.
Grab the code then you can place it as an HTML script on your webpage.
Note: Make sure to place it on the body, not on the header/footer.