Subject lines for restock alerts.
Back-in-stock subjects are among the highest-converting in DTC ecommerce when the audience is real (people who opted in for the specific item). The patterns that work: lead with the product name and the action ('Back in stock: {{productName}}'), name the time window if there's urgency ('Restock drops at 12pm ET'), or use 'reserved for you' framing when applicable. Avoid 'limited quantity' framing unless the quantity is genuinely limited and verifiable; this category is heavily abused, and recipients have learned to discount it.
Paste a subject line and the body it pairs with. Get a predicted open-rate score, risk flags, and three variants. Free anonymous run.
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