MDVA-30599: customer_is_guest is set incorrectly

The MDVA-30599 patch fixes the issue where guest quotes created using API are incorrectly marked as quotes for logged-in customers. This patch is available when the Quality Patches Tool (QPT) 1.0.6 is installed. The issue was fixed in Adobe Commerce 2.4.2.

Affected products and versions

The patch is created for Adobe Commerce version:

Adobe Commerce on cloud infrastructure 2.3.5-p2

Compatible with Adobe Commerce versions:

Adobe Commerce (all deployment methods) 2.3.4 - 2.4.0

The patch might become applicable to other versions with new Quality Patches Tool releases. To check if the patch is compatible with your Adobe Commerce version, update the magento/quality-patches package to the latest version and check the compatibility on the Quality Patches Tool: Search for patches page. Use the patch ID as a search keyword to locate the patch.


Guest quotes created using API are incorrectly marked as quotes for logged-in customers.

Steps to reproduce:

  1. On the Adobe Commerce storefront, add a product to the cart as a guest user.
  2. In your Adobe Commerce DB, find the corresponding quote_id_mask.
  3. Send an API request to quoteGuestCartRepositoryV1 Cart Repository interface for guest carts. It can be done via Swagger or cURL request.
curl -X GET "" -H "accept: application/json"

Expected results:

In response you get "customer_is_guest": true

Actual results:

In response you get "customer_is_guest": false

Apply the patch

To apply individual patches, use the following links depending on your deployment method:

Additional steps required after the patch installation

The patch will be effective for all new guest carts. If you need to fix existing guest carts, set quote.customer_is_guest = 1 for those records where quote.customer_id is NULL. You could run a query similar to the following:

UPDATE quote SET customer_is_guest = 1 WHERE customer_id IS NULL;
We strongly recommend testing the query on the Staging/Integration environment before running it in Production. We also recommend having a recent backup before any manipulations with DB.

To learn more about Quality Patches Tool, refer to:

For info about other patches available in QPT, refer to Patches available in QPT in our developer documentation.