If I am integrated with Printful, how should I setup my shipping?

[iamherelgbtq]

Even though I am integrated with Printful, I am still prompted to setup shipping with a particular provider. How do I override this step so that customers can simply order and then I can place the Printful orders on the backend. 

We just switched to Square instead of Big Cartel and really want this to work so that we can start launching more products! Please let us know what we should do. 

Any insight would be much appreciated!

Thank you!

Paul