How do you work with clients on Webflow and Zapier

This is a general overall question. How do you guys work with clients when they ask you to “Show my instagram feed on the website”. When i google this problem Zapier is a great solution. However when using it i got a bit confused. Because when i tried to connect Zapier i needed both access to my Webflow account and their instagram account. So who should own the Zapier account? And how should each person log in? Or is there a way simplified way to do this? Thank you for any insight in how to work with Webflow, Zapier and clients.