Found duplicate products in the REST API with pagination.

[Darshit190]

Preconditions and environment

• Magento version: 2.4.6-p4

Steps to reproduce

1. Create a product attribute: attribute label "Is Featured", attribute code "is_featured" and type is Yes/No and sortable.
2. Go to Attribute Sets and assign the "Is Featured" product attribute to the "Bag" attribute set.
3. Open the product. SKU: 24-MB03
4. Enable the "Is Featured" product attribute and save it.
5. In the product search criteria, use the API method "GET" and add this URL, and run it for page 1. 
   https://example.com/rest/V1/products?searchCriteria[currentPage]=1&searchCriteria[pageSize]=9&searchCriteria[filter_groups][0][filters][0][field]=category_id&searchCriteria[filter_groups][0][filters][0][value]=3&searchCriteria[filter_groups][0][filters][0][condition_type]=eq&searchCriteria[filter_groups][1][filters][0][field]=visibility&searchCriteria[filter_groups][1][filters][0][value]=4&searchCriteria[filter_groups][1][filters][0][condition_type]=eq&searchCriteria[sortOrders][0][field]=is_featured&searchCriteria[sortOrders][0][direction]=desc&fields=items[id]
6. In the product search criteria, use the API method "GET" and add this URL, and run it for page 4. (In other pages as well)
   https://example.com/rest/V1/products?searchCriteria[currentPage]=4&searchCriteria[pageSize]=9&searchCriteria[filter_groups][0][filters][0][field]=category_id&searchCriteria[filter_groups][0][filters][0][value]=3&searchCriteria[filter_groups][0][filters][0][condition_type]=eq&searchCriteria[filter_groups][1][filters][0][field]=visibility&searchCriteria[filter_groups][1][filters][0][value]=4&searchCriteria[filter_groups][1][filters][0][condition_type]=eq&searchCriteria[sortOrders][0][field]=is_featured&searchCriteria[sortOrders][0][direction]=desc&fields=items[id]

Expected result

In the API response output, if I set the sort order of the boolean product attribute, it should show unique products on every page.

Actual result

On page number one: ID 3 which we have enabled the "is_featured" product attribute So It's coming first.
{ "items": [ { "id": 3 }, { "id": 1 }, { "id": 2 }, { "id": 4 }, { "id": 5 }, { "id": 6 }, { "id": 7 }, { "id": 8 }, { "id": 9 } ] }

On page number four: I have found the duplicates products
{ "items": [ { "id": 9 }, { "id": 8 }, { "id": 7 }, { "id": 6 }, { "id": 5 }, { "id": 4 }, { "id": 2 } ] }

Additional information

No response

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]

Hi @Darshit190. Thank you for your report.
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[m2-assistant]

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

@magento give me 2.4-develop instance

[magento-deployment-service]

Hi @engcom-Bravo. Thank you for your request. I'm working on Magento instance for you.

[magento-deployment-service]

Hi @engcom-Bravo, here is your Magento Instance: https://9f003487b8634e546db6050c4b708e9f.instances-prod.magento-community.engineering
Admin access: https://9f003487b8634e546db6050c4b708e9f.instances-prod.magento-community.engineering/admin_5169
Login: 46410707
Password: 79cc8272afbf

[engcom-Bravo]

Hi @Darshit190,

Thank you for reporting and collaboration.

Verified the issue on Magento 2.4-develop instance and the issue is reproducible.Kindly refer the screenshots.

We have found Duplicate Products.

Hence Confirming the issue.

Thanks.