In this case the PayServer is
asking you to submit the customer's signature. You can do this by making a
, in which you can either
submit a digital signature or tell the transaction process that the shopper will
sign the printed receipt. To keep the standard request-response flow, the
PayServer responds to this by sending a
, which can have
in case something was wrong with the request.
The diagram below shows a transaction with signature sequence message flow.