Upon purchase, there are two options to get your invoice document:
If you’ve bought historical datasets/schedules/season passes) You will receive an automated confirmation email from PADDLE
OR
If you’ve bought monthly recurring in-season datasets, you will receive an automated confirmation email from STRIPE
These confirmation emails do include an invoice or a link to access it.
P.S. Confirmation emails are being sent to the billing email address you provided on the checkout page.