Is stating that the Session ID is not specified. It actually needs to be retrieved and placed into your workflow fields. Would you please be so kind to share more screenshots of the Create a session and Go to checkout actions so we can see all of the fields.
@gaffneyantonio you just need the front and back of your documents. In this case, you can simply replicate the setups from our demo app. Please check this editor here - https://bubble.io/page?type=page&name=stripe_extendend_demo&id=zeroqode-demo-19&tab=tabs-1 for this example: