
How to Set Discounts for Card Payments Only on Shopify 💳
Learn how to create conditional discounts based on payment method in Shopify. Hide COD, target prepaid payments only, and control when discounts apply using Payflow.


Connecting your Shopify store with the fulfillment center Mailstep is a great way to streamline your e-commerce logistics. Mailstep offers seamless integration with Shopify, letting you automate order processing, warehouse management, and shipping. As your business grows, however, challenges can arise that require specific solutions to keep everything running smoothly.
Our company has developed innovative tools that address key Mailstep shortcomings, including automatic COD rounding, EUR COD processing in Slovakia for stores operating in CZK, fixing faulty orders, and improving delivery with our Globe app for pickup points. Read on to see how we can take your Shopify–Mailstep experience to the next level.
Mailstep is a leading fulfillment center in the Czech Republic that offers automated logistics solutions for e-commerce. Thanks to its Shopify integration, Mailstep lets store owners outsource warehousing, packing, and shipping, freeing up time for marketing and business development. Orders from your Shopify store sync automatically with Mailstep, ensuring up-to-date information about stock levels and order status.
As your business scales — especially when serving multiple regions or managing several stores — limitations can appear. Our solutions address these issues and help keep your fulfillment efficient and customer-friendly.
For stores offering cash on delivery (COD), setting accurate amounts is crucial, especially for cross-border shipments. Many carriers, for example in Slovakia, require COD amounts to be rounded to specific values (e.g. to the nearest 5 cents). Without automation, this process can be manual, time-consuming, and error-prone, which can lead to delays or customer dissatisfaction.
Our solution automates COD rounding for Shopify stores integrated with Mailstep. In line with carriers' rules, we ensure COD amounts are adjusted automatically — for example, from €6.93 to €6.95 for shipments to Slovakia, or from 199.87 CZK to 200.00 CZK for orders in the Czech Republic with hellers. This saves time, reduces errors, and ensures compliance with local regulations.
If you run a Shopify store primarily in Czech koruna (CZK) but serve customers in Slovakia, where the standard currency is the euro (EUR), processing COD can be a challenge. Converting amounts and ensuring compliance with carrier requirements can be complex and time-consuming.
Our solution automates the CZK-to-EUR conversion for COD shipments to Slovakia. The system takes current exchange rates and carrier requirements into account, ensuring smooth order processing and customer satisfaction. This eliminates manual adjustments and simplifies cross-border sales.
Likewise, if you run a store primarily in euros (EUR) and send COD shipments to the Czech Republic, where the standard currency is CZK, our solution handles that conversion too. It automatically converts EUR to CZK at the current exchange rate and ensures compliance with Czech carrier requirements, making cross-border selling easier.
When Mailstep processes orders, a shipment occasionally ends up faulty because it contains the same products but at different prices — for example, during a 2+1 promotion where one product is repeated, or when you have two units of the same item but one is more expensive for some administrative reason. With a promotion like "buy two, get one free," this can affect hundreds of orders. So you don't have to fix these shipments in Mailstep manually, we developed an automated solution.
The system recognizes when the same goods appear at different prices, merges them into one clear record, and updates everything in Mailstep. As a result, it's faster, with fewer errors, and the warehouse runs more smoothly.
In addition to solving the issues above, we also offer our Globe Pickup Points app, which adds delivery flexibility through pickup points. Globe is fully compatible with Mailstep and lets customers choose their preferred pickup point right at checkout in your Shopify store. This app increases convenience for customers and improves their shopping experience.
Globe also simplifies pickup point management for you as the merchant. It automatically syncs available pickup points with carriers, ensuring smooth coordination between the store and fulfillment.

Our tools are designed to remove the common obstacles of using Mailstep with Shopify. Whether it's automating COD processes, simplifying cross-border sales, managing duplicate items, or expanding delivery options, our solutions save time, reduce costs, and improve customer satisfaction.
Want to learn more about how we can optimize your fulfillment? Contact us and discover how our tools can take your Shopify store to the next level!
It addresses key gaps when using Mailstep with Shopify: automatic cash-on-delivery rounding, EUR COD processing in Slovakia for stores operating in CZK (and the reverse), fixing faulty shipments caused by duplicate items at different prices, and pickup-point delivery through our Globe app.
Some carriers — for example in Slovakia — require cash-on-delivery amounts to be rounded to specific values. Automating this avoids time-consuming manual edits and reduces errors that can delay shipments.
Yes. The solution automatically converts CZK to EUR (and EUR to CZK) for COD shipments using current exchange rates and carrier requirements, so cross-border orders process smoothly.
When the same product appears at different prices in an order — for example during a 2+1 promotion — the system recognizes it, merges the lines into one clear record, and updates everything in Mailstep automatically, so you do not have to fix shipments by hand.

Learn how to create conditional discounts based on payment method in Shopify. Hide COD, target prepaid payments only, and control when discounts apply using Payflow.

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