Campaign integrations require the Explorer plan or higher. The Explorer plan includes email sequencing integrations, which allow you to connect with campaign tools like Smartlead and Lemlist.
Note that you can't create new campaigns directly within Clay - you need existing campaigns in your email sequencing tool to add leads to.
Hello Brandon! Thanks for reaching out! The campaign functionality is currently in Beta and not open to all customers.
You can join the Beta program but not sure if it is available to all Beta users as well? You can go to Settings > Join Beta Program.