Introducing Checkout Delivery Options Sync

Your customers pick a delivery date and time slot with Buunto on your product or cart page — then they reach checkout and have to choose the right shipping option all over again. It’s a confusing extra step that shouldn’t be there.

Checkout delivery options sync fixes this. It connects Buunto directly to your Shopify checkout so the right delivery option is already selected, with a clear label showing exactly what the customer chose.

And it works on every Shopify plan, including Basic. Shopify Functions that customise the checkout are normally reserved for higher-tier plans — Buunto makes this available to all merchants at no extra cost.

What it does

When a customer makes a selection in Buunto, the checkout shipping method is automatically renamed to show the full details:

• Local delivery (Friday 13 February, 11am - 12pm) — instead of a generic rate name
• Store pickup – London Store (Tuesday 17 February, 9am - 10am) — with the location, date, and time
• Standard — left untouched for regular shipping

Labels are automatically translated based on the customer’s language, and date formats adapt to their locale.

How it works

Checkout delivery options sync uses a Delivery Customization Shopify Function that runs at checkout to rename your delivery rates on the fly. You create placeholder shipping rates with specific names (like BUUNTO_LOCAL_DELIVERY and BUUNTO_STORE_PICKUP), and Buunto replaces them with the customer’s actual selection.

If the customer hasn’t made a selection yet, the Buunto rates are hidden entirely — only your standard shipping options are shown.

Per-location pricing for Store pickup

If you have multiple pickup locations, you can set different prices for each one. Just add a location-specific rate using the format BUUNTO_STORE_PICKUP_<locationId>, and it will take priority over the generic rate when a customer selects that location.

Buunto shows you the exact rate names to use for each of your locations right in the setup instructions — no guesswork needed.

Getting started

Setup takes just a few minutes:

1. Activate the Shopify Function from Buunto’s settings
2. Add the placeholder shipping rates to your Shopify shipping zones
3. Deactivate Shopify’s built-in Local delivery or Local pickup (if enabled) to avoid duplicates
4. Test the checkout

For the full step-by-step guide, check out our documentation.