get https://api.voucherify.io/v1/promotions//stacks
This method enables you to list promotion stacks from a specified campaign.
Response schema
Returns a list if a valid promotion campaign identifier was provided in the path.
data
An array of stack objects.
id
An internal id corresponding to the stack id.
name
Contains the name of the stack.
tiers
An object containing the ids
of the stacked promotion tiers.
Returns an error if an incorrect campaign id is provided.