Seasonal
It only works if the page can take the traffic, the code can't be abused and the offer actually ends when you said it would.

Static rendering means the spike doesn't take the store down.
Use limits and expiry stop a code circulating for a year.
Campaigns close themselves at the time you set.
The people who bought last year are already in it.
0%
platform fee on any plan
~1 min
to claim a link and publish
10
product types on one page