How shipping logic fits into Shopify
Shopify gives apps two main hooks into shipping. A carrier service returns live rates to checkout from your own backend, so prices can reflect weight, zone, courier and margin. Delivery customization Functions then hide, rename or reorder the options a customer sees, for example removing COD for certain pincodes or order values.
We combine the two with a rate engine that knows your courier contracts, a serviceability check per pincode, and a delivery-date estimate on the product page. Everything is cached so checkout stays fast even when a courier's API is slow.
What a shipping app can do
Live rates at checkout
Rates from one or several couriers, with your markup, free-shipping thresholds and fallbacks when an API times out.
Pincode serviceability
A pincode checker on the product page and rules that block orders you cannot deliver.
Delivery date estimates
Estimated delivery dates by pincode and courier, shown on product, cart and checkout.
COD and payment rules
Hide or limit cash on delivery by pincode, order value, customer history or product.
Delivery customization
Shopify Functions that rename, reorder or hide delivery options based on cart contents.
Fulfilment sync
Create shipments with the courier on fulfilment and push tracking numbers back to Shopify.
- Typical length
- 4–8 weeks
- Built with
- Carrier service + Functions
- For
- D2C brands, aggregators
Questions
Can Shopify show live courier rates at checkout?
Yes, through a carrier service app that returns rates from your backend during checkout. Availability depends on your Shopify plan, so we confirm this during the discovery call before recommending an approach.
Can you disable cash on delivery for some pincodes?
Yes. A payment customization Function can hide COD based on the shipping pincode, order value, products in the cart or customer tags.
Can this be a public app for other merchants?
Yes. If you are a logistics company or aggregator, we can build it as a public app so your merchants install it from the Shopify App Store.
Which couriers can the app connect to?
Any courier or aggregator with an API. See our courier API integration page for the carriers and aggregators we commonly work with.
Start with a free 30-minute call
Tell us what you're building. We reply with next steps or a time to talk, then send a written scope with a fixed price or hourly estimate.