Updating a gift card with the given identifier.
_session_hash (string)
Required. Session identifier (received during login - doLogin)
id (integer)
Required. Identifier.
code (string)
Code
amount (double)
Amount
currency_id (integer)
Currency ID
min_order_amount (integer)
Minimum order amount
valid_to (date)
Valid to
_update (boolean)Update status.