freeVend flag added to the socket object in GET chargers and GET sockets response
- freeVend = 1 indicates the socket does not charge for EV session (zero priced tariff).
- freeVend = 0 indicates that payment is needed for EV session when using the socket.
Note:
If a charger does not allow socket selection (socketsSelectable flag is set to 0) AND not all sockets are free vend
then it is recommended to collect payments card details from the customer in case the session is payable.
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