MDVA-40830: Store credit applied multiple times during order

The MDVA-40830 patch fixes the issue where the store credit is applied multiple times during order placement. This patch is available when the Quality Patches Tool (QPT) 1.1.11 is installed. The patch ID is MDVA-40830. Please note that the issue is scheduled to be fixed in Adobe Commerce 2.4.5.

Affected products and versions

The patch is created for Adobe Commerce version:

• Adobe Commerce (all deployment methods) 2.4.2

Compatible with Adobe Commerce versions:

• Adobe Commerce (all deployment methods) 2.3.0 - 2.3.7-p2, 2.4.0 - 2.4.3-p1

Issue

The store credit is applied multiple times during order placement.

Steps to reproduce:

1. Create a customer and add store credit to the customer account.
2. Add a simple product to the cart.
3. Set shipping address and billing address for the cart.
4. Check the cart's grand_total.
5. Apply store credit to the cart using the following GraphQL request:

mutation {
  applyStoreCreditToCart(
    input: { cart_id: "%cartId%" }
  ) {
    cart {
      prices {
        grand_total {
          currency
          value
        }
      }
      applied_store_credit {
        applied_balance {
          currency
          value
        }
        current_balance {
          currency
          value
        }
      }
    }
  }
}

Expected results:

The value of applied_store_credit is applied accurately, and cart totals are correctly reflected in the API response.

Actual results:

The value of applied_store_credit is applied twice, affecting both the cart and grand_total.

Apply the patch

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

• Adobe Commerce or Magento Open Source on-premises: Software Update Guide > Apply Patches in our developer documentation.
• Adobe Commerce on cloud infrastructure: Upgrades and Patches > Apply Patches in our developer documentation.

Related reading

To learn more about Quality Patches Tool, refer to:

• Quality Patches Tool released: a new tool to self-serve quality patches in our support knowledge base.
• Check if patch is available for your Adobe Commerce issue using Quality Patches Tool in our support knowledge base.

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