How to Implement a payment method from a custom app

Payments + Shipping & Fulfilment

Topic summary

A developer is seeking to integrate Naver Pay as a payment method for Shopify Korea through a custom app, as Shopify doesn’t natively support this payment option.

Key Information Provided:

  • Creating payment apps requires becoming a registered Shopify payments app developer
  • Application link: https://paymentsplatform.splashthat.com
  • Official documentation available at shopify.dev/apps/payments
  • Reference thread exists discussing payment app creation process

Alternative Solution:

  • Stripe now supports South Korean payment methods
  • Third-party checkout solution “Easy Pie Shopify Stripe Checkout” suggested as potential workaround

Status: The discussion remains open with the developer receiving guidance on the formal application process but no confirmation of whether they’ve proceeded with registration or chosen an alternative approach.

Summarized with AI on October 27. AI used: claude-sonnet-4-5-20250929.
1

Hi team,

I am working with naver pay on Shopify Korea. Shopify is not available for this type of payment method
Can I implement a payment method from a custom app (not public app)?
Is there any documentation to implement a new payment method?

Thanks

2 Likes
2

Hi,

Check out this solution here: https://community.shopify.com/c/shopify-apps/looking-for-how-to-create-a-payments-app/td-p/1573050

1 Like
3

I have seen the article you sent. How to register become payment app developer ?

4

Here is the link to apply:

https://paymentsplatform.splashthat.com

Source:

https://shopify.dev/apps/payments#payments-partner-application-review

5

Many Stripe accounts now support South Korean payment methods, check out the third party checkout solution Easy⇉Pie Shopify Stripe Checkout to take advantage of this.

3 Likes