Error "Payments App doesn't exist" on paymentsAppConfigure in credit card extension app

Shopify Apps

Topic summary

A developer is encountering an error when configuring a credit card payment app extension using Shopify’s official template repository.

After cloning the example app and completing the setup for an onsite payment method extension in a development store, the paymentsAppConfigure mutation returns the error: “Payments App doesn’t exist.”

The developer notes that:

  • The same workflow functions correctly with offsite payment method extensions
  • They’re unsure how to debug this issue or whether something is missing from the app configuration

Another developer has confirmed experiencing the identical problem during payment app development.

The issue remains unresolved with no solutions or explanations provided yet.

Summarized with AI on November 2. AI used: claude-sonnet-4-5-20250929.
1

I’m trying to do a setup of the Credit card payment app following the documentation. I cloned the repository that they mentioned in that documentation:

git clone https://github.com/Shopify/example-app--credit-card-payments-app-template--remix

After doing all the setup, selecting the onsite payment method extension and did all the setup for the development store, I’m struggling into an error that doesn’t know how to debug:

PS: I’m trying to configure the paymentsApp into a development store, it should works given the same flow than offsite payment provider, right?

{
  data: { paymentsAppConfigure: { userErrors: [Array] } },
  extensions: {
    cost: {
      requestedQueryCost: 10,
      actualQueryCost: 10,
      throttleStatus: [Object]
    }
  }
}
{
  response: {
    userErrors: [ { field: null, message: "Payments App doesn't exist." } ]
  }
}

I don’t have this problem with an offsite payment method extension. Any idea why it’s happening? Or how to debug it? Missing something into our App configuration?

3 Likes
2

I am also facing same issue while developing payment app. Any update on this?