How Are You Handling Advanced COD & Shipping Rules in Your Shopify Apps?

Shopify Apps
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1

Hi Everyone :waving_hand:

I’m curious how other merchants are handling Cash on Delivery (COD) restrictions and advanced shipping rules.

Some common challenges I’ve seen:

• Restricting COD for high-risk pin codes
• Adding extra COD charges dynamically
• Hiding COD based on selected shipping method
• Controlling shipping rates by location
• Showing/hiding specific shipping methods conditionally

Shopify’s default settings work for basic setups, but once you need rule-based logic, things get complicated quickly.

I recently worked on a solution that allows:

:white_check_mark: Pin code-based shipping rules
:white_check_mark: Conditional shipping rate modifications
:white_check_mark: COD visibility control
:white_check_mark: Additional COD charges
:white_check_mark: Smart rule-based configuration (no theme edits required)

I’d love to know how others here are solving this — custom code? third-party apps? manual processes?

Happy to exchange ideas :blush:

—
Himanshu
Shopify App Developer

2

Hello @vedantara

Great questions, I think you would benefit from an app that uses the Shopify Payment & Shipping Customization functions that allow you to hide COD or Shipping Methods based on the conditions you mentioned for all Shopify store plans.

Here is an example of hiding the COD option for certain countries using the Checkout Plus app. You can do the same for Shipping methods and other conditions:

Screenshot 2026-03-02 at 11.20.39 AM
Screenshot 2026-03-02 at 11.20.39 AM1461×840 62 KB

I hope this helps!

3

@Darian1 Thanks for the suggestion — totally agree :+1:

Shopify Payment & Shipping Customization Functions are indeed the right way to implement conditional logic for COD and shipping methods across plans.

That’s exactly the approach we’ve taken with Advanced PinCode Shipping Rule as well. It’s built on Shopify Functions and focuses on more granular control like:

• Postcode range logic (avoiding manual entry of thousands of codes)
• Dynamic COD charges
• Conditional payment visibility
• Location-based shipping rule combinations

The goal has been to give merchants flexibility without theme edits or complex workarounds.

Appreciate you sharing the Checkout Plus example — it’s great to see different implementations of Shopify Functions in action :blush: