Bundle Product Discount Amount is not set in quote_item table

[senthilengg]

Preconditions and environment

• Magento version 2.4.8

Steps to reproduce

1. Create a Cart price rule for 1% product price discount with no conditions and no actions conditions
2. Add the bundle product "[Sprite Yoga Companion Kit]" from the installed sample data package
3. Check Quote Item table discount_amount

Expected result

1. discount_amount should be greater than zero in quote_item table
2. base_subtotal_with_discount should be subtotal-discount amount in quote table
3. checkout/cart ui should display right discount amount and total

Actual result

1. discount_amount is zero in quote_item table
2. base_subtotal_with_discount is same as subtotal
3. checkout/cart ui displaying correct data

Additional information

Bug introduced by ACP2E-3491: Cart rule sku condition is failing for invoice.

Fixing this ticket will help : #40235 (since discount amount was referred from extension attributes for bundle products due to this bug.)

Release note

No response

Triage and priority

• Severity: S0 - Affects critical data or functionality and leaves users without workaround.
• Severity: S1 - Affects critical data or functionality and forces users to employ a workaround.
• Severity: S2 - Affects non-critical data or functionality and forces users to employ a workaround.
• Severity: S3 - Affects non-critical data or functionality and does not force users to employ a workaround.
• Severity: S4 - Affects aesthetics, professional look and feel, “quality” or “usability”.

[m2-assistant]

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[m2-assistant]

Hi @engcom-November. Thank you for working on this issue.
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[engcom-November]

Hello @senthilengg

Thank you for your report and collaboration.

We attempted to reproduce this issue in our 2.4-develop instance, but we were not able to reproduce it as described.

Please find the attached screenshot for reference.

Steps to Reproduce:

• Created a Cart Price Rule for 1% product price discount with no conditions or action conditions.
• Added the bundle product "[Sprite Yoga Companion Kit]" from the installed sample data package.
• Verified the quote_item table for the discount_amount field.

Our Observations vs. Reported Results

1. discount_amount in quote_item:
   In our instance, the child items of the bundle show non-zero discount values.

The parent bundle row shows discount_amount = 0, which is the expected behavior for dynamic bundle products in Magento — since discounts are applied and stored at the child item level.

Could you please confirm if you were expecting the parent bundle item to also reflect a non-zero discount amount?

2. base_subtotal_with_discount in quote table:
   As per our verification, the base_subtotal_with_discount value is less than base_subtotal, confirming that the discount is being correctly applied and persisted in the quote table.

This matches the expected behavior:

base_subtotal_with_discount = base_subtotal – discount_amount

3. Frontend (checkout/cart UI):
   The checkout and cart pages correctly display the discount and total amounts.

Based on our testing, everything is working as expected on the 2.4-develop branch.

Could you please re-verify the issue on your side and confirm if you are still able to reproduce it?

If yes, please share any additional steps or specific configurations we might be missing to help us investigate further.

Hence, marking this issue as “Needs Update.”

Thank you for your effort and detailed reporting!

[senthilengg]

For some reason I couldn't also reproduce in the develop branch now. Lets close this for now and re-open if need be again. Thank you @engcom-November