Yes.  The invoicing process is fully automated.

If you pay by bank transfer or via TransferWise, you’ll first receive a Pro forma invoice, stating the account number and other banking details you’ll need to initiate the transfer.   Once the amount is safely received on our bank account, you’ll receive your ‘deposit invoice’ that you can already send to your accountant.   Shortly after the conference you’ll receive your final invoice with a zero payable balance.  (The reason for this is that payment precedes the actual service, and the final invoice can only be issued after the service is fully provided.)

If you pay immediately (i.e. by bank card / PayPal), you’ll receive the ‘deposit invoice’ straight away, then the final invoice after the conference as described above.