Afterpay works best when your average order is big enough that paying all at once puts people off. We see it perform for apparel, outdoor gear, furniture and wellness brands with baskets around $100 to $600. Below that it usually just adds a fee. We look at your order values before recommending it.
Where it appears matters more than the integration itself. Instalment pricing needs to show on the product page and in the cart, not only at checkout. By checkout the customer has already decided what they can afford. We also track what it does to returns and margin, not just to order value.