Changing the coupon, variant, option and date parameters may affect the response values for each tier.

Field	Description
id	The unique id for the tier
serial	An auto-incrementing integer that will uniquely identify this tier within the product.
weight	Defines the order in which variants should be displayed.
name	The title or name of the tier.
description	A short paragraph explaining who this tier is intended for or what it includes.
size	The number of people this tier covers. Typically this will be 1 but could be more for Family Tickets for example.
weight	Defines the order in which the tiers should be displayed.
currency	The product currency, which is brought through for convenience.
price	The price of this tier for an individual ticket given the supplied parameters.
available	Whether this tier is available to purchase by default or not.
minimum	The minimum number of tickets of this type that can be purchased in a single booking.
limit	What is the maximum number of tickets that can be purchased with this tier for an individual booking.
size	The maximum number of people permitted for a given option with this tier. Basically, this means: `tier.size * tickets.count < tier.capacity`
threshold	An integer value indicating how many spaces for an option need to be sold before this tier becomes available.
count	The maximum number of times this ticket is allowed to be scanned. A `null` value would indicate unlimited
notice	An ISO8601 time period indicating how long before an option is due to start before this tier becomes unavailable for purchase.
period	An ISO8601 time period indicating how long before an option is due to start before this tier becomes available for purchase.
interval	An ISO8601 time period indicating how long must be left between scanning this type of ticket.
duration	How long this ticket would be valid for from the start of the option it is purchased for.