Hi @shubhammishra4,
Great question!
To address the 30-minute delay for the ‘back to stock’ email trigger in VTEX, maybe you can consider using the vtex.lemeknow app. This app handles the data collection for back-in-stock notifications but doesn’t automatically email customers when the product becomes available again. Here’s a link to a related post for more details.
Additionally, the vtex.availability-subscriber app also can be used to collect emails from customers who want updates on out-of-stock products. Like vtex.lemeknow, it does not automatically send emails when the product is back in stock.
Once you have the email collection working, you can create custom triggers to send out the notifications after the 30-minute delay.