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Cross-sell on WhatsApp

After a customer confirms their order, offer them related products on WhatsApp. They tap Add to order once and the new item joins the same shipment — no return trip to your store.

Cartsaver surfaces Cross-Sell performance as live counters, with a deep link straight into the data-source picker:

Cross-Sell panel in the Cartsaver admin with a green master toggle, the subtitle 'Product recommendations after order confirmation', and three counters: Messages Sent, Converted, Revenue, plus View Orders and Configure links.

Cross-sell messages are sent exclusively on WhatsApp via Meta’s WhatsApp Flows.

  1. The customer verifies their order.
  2. After a short delay (Cartsaver waits about 15 minutes by default — long enough that the customer isn’t multi-tasking, short enough that the order context is still fresh), they receive a WhatsApp message with product recommendations.
  3. They tap Add to order inside WhatsApp.
  4. They pick a variant (size, colour) from a dropdown inside the WhatsApp message.
  5. The product is added to the original Shopify order automatically — no new order is created.

WhatsApp cross-sell message from a Cartsaver-powered store: 'Most people who bought the same products added one of these. It ships together with your current order. Nothing gets added until YOU confirm.' followed by a 'View Details' link, then a product carousel showing Dr Martens 1460Z DMC 8-Eye Boot Cherry Smooth priced at 249.00 USD with a View Details button, and another Dr Martens shoe partially visible to the right.

You choose how Cartsaver picks which products to show:

You hand-pick a specific list of products shown to every customer after order confirmation. Useful for promoting seasonal items or high-margin SKUs.

You pick a Shopify collection and Cartsaver chooses products from it. Best for variety without manual maintenance.

Cartsaver uses Shopify’s official product recommendations engine to surface items most relevant to the current order:

  • Related — similar items. Available today.
  • Complementary — items that pair with what was ordered. Coming soon.

When the source is Shopify Recommendations, Cartsaver bases its query on the first five line items in the order — beyond that, items aren’t considered for recommendations.

The cross-sell message offers a maximum of 10 products. Any product source can include up to this cap of 10 items.

  • An active WhatsApp Business account.
  • A Meta-approved cross-sell message template (handled by Cartsaver).
  • Suggested products in stock and not already in the customer’s order.
  • The original order is not yet fulfilled. Cartsaver adds the cross-sell item to the same Shopify order — once the order is marked fulfilled, the line items are locked and the cross-sell can’t go through.

When the customer confirms a cross-sell, Cartsaver adds the new item(s) to the original Shopify order rather than creating a new one — simplifying fulfillment and accounting. Cartsaver adds tracking tags to each cross-sell line item so the addition is identifiable in your Shopify order detail.

A cross-sell isn’t a second sales pitch — it’s a small, easy yes at the end of a checkout the customer has already committed to. Pick products with that in mind.

Of the three product-source strategies, Manual gives you the most control over what gets pitched and to whom. Collection and Shopify Recommendations are convenient, but they’ll surface whatever fits the rule — including products that don’t make sense as a cross-sell. Curate the list yourself.

If the customer is already buying your hero SKU, suggesting it again adds nothing. Pitching a different hero SKU is worse — you’re asking the customer to make a second big decision they didn’t sign up for. Save your main products for the main checkout. Cross-sells are for the smaller, easier wins.

The customer is finishing a checkout, not starting a new one. A low-priced add-on slips in. An expensive add-on stalls the whole moment and they walk away from both the cross-sell and — sometimes — the original order. Price the cross-sell to be a no-brainer.

The mental model is “want it, tap it, done” — not “should I consider this”. Choose items the customer won’t think twice about: small, useful, instantly understandable. If the decision needs research, it doesn’t belong in a cross-sell.

If the order is for jeans, don’t cross-sell another pair of jeans. Pitch something that pairs naturally with the jeans — a basic t-shirt, a wallet, a perfume, a belt. Different category, same buyer. Complementary cross-sells feel like a helpful suggestion; similar ones feel like the store doesn’t know what the customer just bought.

Cross-sell prompts are sent in the customer’s checkout language — Arabic, English, Hindi, or Urdu — with a fallback to your store’s default.

Cross-sell messages don’t count against your plan’s WhatsApp message quota — they’re billed separately by Cartsaver. Pitch cross-sells as often as you want without burning the credits you saved for order confirmations and customer support.

The Cartsaver dashboard shows messages sent, customers who added a product, revenue generated, and top-performing products per campaign.

See Cross-sell sources.