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 and requires a public API key (site ID). Never use a private API key with our client-side endpoints.
To create back in stock subscriptions from server-side applications, please use POST /api/back-in-stock-subscriptions.
Rate limits:
Burst: 350/s
Steady: 3500/m
Scopes:
catalogs:write
profiles:write