Create checkout example not working

Retired Boards Appdev Custom Storefronts

AI-generated summary

Creating a checkout through Shopify’s Checkout API returned variant_id is invalid even though the variant ID appeared correct. The initial suspicion was that the product was not published to the custom sales channel, because unpublished products cannot be used in checkout creation.

Key findings:

  • The app had been created as a sales channel and installed on a development store, but the product could not be added to that channel.
  • A screenshot was used to show the app appearing under Sales Channels while product publishing options were missing.
  • There was also uncertainty about whether the app had been installed correctly from the Partner Dashboard.

Most important update:

  • The original issue was ultimately traced to app scopes, not the variant ID itself.
  • After requesting additional unauthenticated scopes and reinstalling the app, checkout creation worked.

Scopes reported as working:

  • write_checkouts
  • read_product_listings
  • unauthenticated_read_product_listings
  • unauthenticated_write_checkouts
  • unauthenticated_write_customers
  • unauthenticated_read_customer_tags

Current status:

  • The original poster resolved it.
  • Later replies say the same error still occurs for others, so the broader issue remains partly open.
1

Hello all. I’m having some trouble creating checkouts…

I’ve

  1. Created an app in my partner dashboard

  2. Configured it to be a sales channel

  3. Installed it on a development store

  4. Setup a call that looks like this https://help.shopify.com/en/api/guides/sell-through-the-checkout-api#creating-a-checkout. Actual call:

const orderJson = {
    "checkout":{
      "email": "john.smith@example.com",
      "line_items": [{
        "variant_id": 19357625483360,
        "quantity": 1
      }],
      "shipping_address": {
        "first_name": "John",
        "last_name": "Smith",
        "address1": "126 York St.",
        "city": "Denver",
        "province_code": "CO",
        "country_code": "US",
        "phone": "(123)456-7890",
        "zip": "80204"
      }
    }
  }

  const url = `https://my-dev-store.myshopify.com/admin/api/2019-04/checkouts.json`

  const shopRequestHeaders = {
    'X-Shopify-Access-Token': 'MY-PERM-TOKEN',
    'Content-Type': 'application/json'
  }

    fetch(
      url,
      {method: 'POST', body:JSON.stringify(orderJson), headers: shopRequestHeaders }
    ).then(resp => resp.json()).then(resp => console.log(JSON.stringify(resp))).catch(err => console.error(JSON.stringify(err)))
  })

And I get back a response that looks like:

{“errors”:{“line_items”:{“0”:{“variant_id”:[{“code”:“invalid”,“message”:“is invalid”,“options”:{}}]}}}}

The variant ID should be correct (pulled it from the product’s XML page). What else should I look at/check?

Thanks in advance,

Dan

2

There’s a bunch of context that I’m missing here but will start with a quick question. Is that product published on that sales channel?

3

Thanks for the reply. It wasn’t. When I try to add the product to that sales channel, it’s not listed as an option.

Screen Shot 2019-05-04 at 10.25.09 AM.png
Screen Shot 2019-05-04 at 10.25.09 AM.png2136×666 92 KB

Could it be a scopes thing? Current scopes I’m passing/requesting are

'write_checkouts,read_product_listings'

Thanks,

Dan

4

Also, happy to provide any context that would be helpful…

Dan

5

Hey Dan,

How is it that you got the Sales Channel installed on your shop? Was this with the ‘Install on development shop/store’ (sorry, forgot the exact wording) button from the Partner Dashboard?

6

yes

7

Well, as I think about it, it may have been through the link specified here https://help.shopify.com/en/api/tutorials/build-a-shopify-app-with-node-and-express#step-6-run-your-app

8

Happy to re-do any part of the setup if it’ll clear anything up

9

Hey again Dan,

I think that’s worth a shot for sure - something seems off about your installation but it’s difficult to put a finger on exactly what that might be. I have a test Sales Channel and every time I install that it appears in the ‘Apps’ section of my shop admin, whereas yours does not.

Can you try the ‘Install on development store’ option from the Partner Dashboard? If you log into your Partner account and find your app, the option will be under the ‘App actions’ drop-down menu near the top of the page.

10

Thanks for the reply Josh,

It shows up under “Sales Channels” but doesn’t allow me to add any products to it :frowning:

Dan

11

See /c/image/serverpage/image-id/5840i00EA6FE061798AA0/image-size/large?v=1.0&px=999

12

Hey again Dan,

Sorry for the delay here - I’ve still been unable to replicate this, it’s a tricky one. Would it be safe to assume you’re still having the same problem?

If you can confirm that this hasn’t been resolved yet, I’ll report it to our engineering team so they can investigate further.

13

It was a scopes issue. I needed to request the following scopes:

write_checkouts,read_product_listings, unauthenticated_read_product_listings, unauthenticated_write_checkouts, unauthenticated_write_customers, unauthenticated_read_customer_tags

Not 100% sure I needed all of them, but I requested all the unauthenticated scopes I could, re-installed and it worked :slight_smile:

14

Wow, that is very interesting - I was almost positive that I was copying your app scopes when trying to replicate.

Very good information to have, thanks a lot for following up!

15

Still having this problem, how to solve this?

16

I’m still getting this error, products are listed in my app

17

Not working for me.. I have try all things but same error.