cartCreate GraphQl storefront api is failing silently for some time

Technical Q&A
1

The cartCreate GraphQL storefront api has been failing silently for some time, returning cartData null with no userErrors. And after some time cart creation gets succesfull

2

Hey, I’ve run into the same issue before with the cartCreate Storefront API. Sometimes Shopify’s cache or session throttling can cause the mutation to silently return null without userErrors. Often, retrying after a few seconds works—but it’s inconsistent.

A more reliable approach is to:

  1. Add retry logic in your frontend code with exponential backoff.

  2. Check for client-side caching or cookies that may interfere with cart creation.

  3. Log all responses even when cartData is null to spot patterns.

3

We’re seeing a cart creation failure on a specific store, but it’s working on all other stores. The weird part is that the same API call works fine when I run it from my local environment, most likely a caching issue only?