Connecting payments and shipping in your store: a practical guide

The two biggest reasons for cart abandonment: unclear payment and surprise shipping. Here is how to fix both before the first order.

Your product can be excellent and your design beautiful, and the store can still lose the order on the last screen: the customer finds no suitable payment method, or sees a shipping cost they did not expect. The rule is simple: everything is clear before payment, and nothing surprises them after.

Payments: what you need before connecting

A payment provider account: create it and complete its requirements before launch, because review can take time.
Suitable payment methods: cards, digital wallets, and bank transfer or cash on delivery where needed.
Know where the money goes: with The Zum, money goes to your account through the provider and never passes through the platform.
A small real test: run a small transaction and refund it, to confirm everything works.

How to choose a payment gateway?

Fees: usually a percentage plus a fixed amount, and they vary by card type.
Settlement speed: when the money actually reaches your account.
Supported methods: do they cover what your customers actually use?
Refunds and support: how returns are handled, and how fast they respond to a problem.
Integration: is the provider supported directly in your platform, or does it need extra steps?

Shipping: decisions to settle in advance

Who pays: free shipping, paid shipping, or free above a threshold.
Regions and timelines: state clearly where you deliver and when, and do not promise what you cannot deliver.
Weight and size: some products completely change the shipping equation.
Packaging and liability: who bears damage or loss, and how it is handled.
Returns and exchanges: duration and conditions written in plain language.

Quick setup table

Item	Decision	Where the customer sees it
Payment gateway	Provider and account	Checkout page
Payment methods	Card, wallet, cash on delivery	Checkout page
Shipping cost	Free, flat, or by region	Product page and cart
Delivery time	A realistic day range	Shipping and product pages
Returns	Duration and conditions	Policy page
Contact	A channel that actually works	Footer and contact page

Checkout: fewer fields and no surprises

Ask for the minimum: name, mobile, address, and payment method.
Do not force account creation before purchase; make registration an option afterwards.
Show the final cost (product + shipping) before the confirm button, and write clear error messages when needed.

Test before launch

Place a complete order the way a customer would, from product page to confirmation.
Test a refund and confirm the amount arrives.
Repeat the test on mobile and on a different data network.
Try an address outside your city to verify shipping cost and timeline.
Confirm the order confirmation message or email reaches the customer.

Common mistakes

Shipping cost appearing late on the checkout page.
Not stating the delivery time, then apologising after the order.
Forgetting payment fees when calculating price and margin.
Not testing refunds before launch.
Forcing the customer to create an account to complete a purchase.

FAQ

How do I connect a payment gateway to my store?

Create an account with the payment provider and complete its requirements, then connect the account from your platform dashboard and test a small transaction. The money goes to your account, not the platform.

Are payment fees fixed?

No, they vary by provider and card type, and are usually a percentage plus a fixed amount per transaction. Include them in your margin, not after pricing.

Should I make shipping free?

You can, but include its cost in the product price. The clearer alternative: free shipping above a threshold, or a specific cost by region.

How should I show the shipping cost?

Show it on the product page or in the cart before checkout, and do not surprise the customer on the last screen, because that is the biggest cause of cart abandonment.

Do I need a commercial registration for a payment gateway?

Requirements vary by provider and activity type. Check the provider's requirements before launch; The Zum does not ask for documents to create a store, but the payment gateway may.