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In order to illustrate the solution, let's consider the following example. The customer has bought 2 tickets. The on-line shop allows mobile ticket and print@home shipment mode. He selects the mobile ticket shipment mode and pays the order. No tickets have been downloaded or printed yet. The end customer has still the choice between downloading a ticket on his mobile or printing an e-ticket.
The end customer decides to download the first ticket on his mobile. He can't get an e-ticket anymore to prevent the invalidation of the mobile ticket:
The restriction works similarly in the other way. If the end customer prints the second ticket as a print@home, he won't be able anymore to download it as a mobile ticket. Clicking several times on the printable ticket link will open exactly the same PDF file (without invalidating previous tickets).
Getting started
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You may decide to enable the two factor authentication for a subset of the operators only, for example for the administrators having extended access rights. To do this, you will have to:
- Send a request to our service team to enable the feature
- Define for each operator if (s)he has to use the two factor authentication