Updating the discount code with the given identifier.
_session_hash (string)
Required. Session identifier (received during login - doLogin)
id (integer)
Discount code identifier.
code (string)
Required. Code
discount (double)
Required. Discount in percent
valid_usage (integer)
Number of uses, 0 means no limit
valid_from (dateTime)
Valid from
valid_to (dateTime)
Valid to
_update (boolean)Update status.