post https://a.klaviyo.com/client/back-in-stock-subscriptions/
Subscribe a profile to receive back in stock notifications. Check out our Back in Stock API guide for more details.
This endpoint is specifically designed to be called from publicly-browseable, client-side environments only. To create subscriptions from server-based applications, please use POST /api/back-in-stock-subscriptions.
Rate limits:
Burst: 350/s
Steady: 3500/m
Scopes:
catalogs:write
profiles:write