The Advanced workflow is designed to make the life
easier for the compliance team. It solves the following issues:

1. enables to decline transactions _a priori_ by using a transfer
   inquiry. This reduces the workload significantly for the
   compliance team.

2. enables to negotiate a payment address _after_ the KYC checks
   have been completed. This eliminates _most_ unwanted payments.

3. enables to share the transaction id _after_ the blockchain
   payment has been executed by using the transfer confirmation.
   This eliminates the need for signed but unbroadcasted transactions
   that require low-level tinkering and are risky because they
   can be executed by simply broadcasting them.