Cart transforms failing since July 9

[Lichen_z]

Shopify API support channel appears to be down and this issue is quite urgent. We’ve had some merchants reporting that cart transforms have been failing since July 9, and it’s still unresolved. Here’s what we’ve seen:

• Cart transform is not breaking down items.
• No function deploys have been made in the last month.
• All metafields are functioning correctly, and no errors are reported in Shopify Partners.

We’d really appreciate any guidance!

[Liam-Shopify]

@Lichen_z

Shopify API support channel appears to be down

This should be working - you should be able connect to API support via the Shopify Help Center.

Can you share some store IDs where this is happening?

[Basil_Khan]

@Liam-Shopify Here are some details:

Example checkout where cart transform should run:

• https://1786b4-3.myshopify.com/cart/50161463853322:1

Some of the affected merchants example stores:

• sentimentalza.myshopify.com
• 1786b4-3.myshopify.com
• flexipan.myshopify.com

[Basil_Khan]

@Liam-Shopify Just adding few more details and observations from our side:

Observations:

• Cart transform function does not run at checkout and bundled products remain untransformed as parent bundles in checkout and Shopify order admin
• No errors in Shopify Partner Dashboard and error rate dropped significantly to 0.00% since July 5 which previously was around 0.03% to 0.04%
• Issue has persisted for over 7 days and impacts merchant transactions
• We want to make sure this is contained and does not propagate to other merchants using cart transform

Troubleshooting steps we’ve taken:

• Verified metafields and all are intact
• Disabled and re-enabled cart transform function multiple times on the affected stores without any effect
• No new function deployments have been made on our side for over a month
• Despite these steps the function appears to not execute at all for affected stores

[Liam-Shopify]

Thanks for this extra info @Basil_Khan - digging into this on my side.

[Liam-Shopify]

@Basil_Khan and @Lichen_z can you share some example products that should have cart transforms, so we can test on our side?

[Basil_Khan]

@Liam-Shopify This variant should have it (5-pack): https://1786b4-3.myshopify.com/cart/50161463853322:1

I will post more shortly.

[Basil_Khan]

@Liam-Shopify Here are a few more:

• Primal Supplements
• https://1786b4-3.myshopify.com/cart/50675992428810:3
• flexipan.myshopify.com has uninstalled the app now.

[Liam-Shopify]

Thanks for sharing these - what API version are you using with your functions @Basil_Khan ?

[Basil_Khan]

@Liam-Shopify We are currently using rust function with API version 2024-10. Let me know if you need any other details.

The peculiar thing is that this is affecting only a handful of our merchants using the app. Let us know if you or the bundles team is able to get to the bottom of this.

Really appreciate you and the team for looking into this!

[Basil_Khan]

@Liam-Shopify I can confirm that these cart transform issues have been resolved and started working again today for the stores reported (and confirmed after looking at the merchant’s order admin).

Do you know what the root cause of the issue was?

Order admin confirmation on orders using cart transform (Simple Bundles 2.0) vs orders not using cart transform (Simple Bundles 1.0):

[Liam-Shopify]

Hi again @Basil_Khan

There was a temporary issue on our side last week which caused this - so nothing related to an action an app made. We were able to manually fix the functions for the stores you shared.

[Basil_Khan]

Thanks for the update @Liam-Shopify!