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Adobe AD0-E716 Exam - Topic 1 Question 63 Discussion

An Adobe Commerce Developer is tasked with creating a custom form which submits its data to a frontend controller They have decided to create an action and have implemented the \Magento\Framework\App\Action\HttpPostActioninterface class, but are not seeing the data being persisted in the database, and an error message is being shown on the frontend after submission.After debugging and ensuring that the data persistence logic is correct, what may be cause and solution to this?
C) Form key validation runs on all non-AJAX POST requests, the developer needs to add the for_key to their requests.
A) Magento does not allow POST requests to a frontend controller, therefore, the submission functionality will need to be rewritten as an API endpoint.
B) The developer forgot to implement a validatePostDataQ method in their action. They should implement this method: all non-validated POST data gets stripped out of the request and an error is thrown.

Adobe AD0-E716 Exam - Topic 1 Question 63 Discussion

Actual exam question for Adobe's AD0-E716 exam
Question #: 63
Topic #: 1
[All AD0-E716 Questions]

An Adobe Commerce Developer is tasked with creating a custom form which submits its data to a frontend controller They have decided to create an action and have implemented the \Magento\Framework\App\Action\HttpPostActioninterface class, but are not seeing the data being persisted in the database, and an error message is being shown on the frontend after submission.

After debugging and ensuring that the data persistence logic is correct, what may be cause and solution to this?

Show Suggested Answer Hide Answer
Suggested Answer: C

According to the Magento Stack Exchange answer, form key validation is a security feature that prevents CSRF attacks by checking if the form key in the request matches the one generated by Magento. If the developer does not include the form_key in their custom form, the validation will fail and an error will be shown. Therefore, the developer needs to add the form_key to their requests by using <?= $block->getBlockHtml ('formkey') ?> in their template file. Verified Reference: https://magento.stackexchange.com/questions/95171/magento-2-form-validation


by Candida at Jul 01, 2026, 02:10 AM

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Luis
1 day ago
Yup, C is the way to go, had the same issue before!
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Shelia
7 days ago
Wait, are we sure about C? I thought form keys were optional.
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Tomas
12 days ago
B sounds right, forgot to validate the data probably.
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Lanie
17 days ago
A is definitely not true, POST requests can work with frontend controllers.
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Hillary
22 days ago
I think option C makes sense, form key validation is crucial.
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Jacqueline
27 days ago
I feel like I’ve seen something about form keys being required for non-AJAX requests. Maybe that’s what’s going wrong here?
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Joesph
1 month ago
I practiced a similar question before, and I think Magento does allow POST requests, so option A seems unlikely.
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Kris
1 month ago
I’m not entirely sure, but I think if the validatePostData method is missing, it could definitely cause issues. That sounds like option B.
upvoted 0 times
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Mose
1 month ago
I remember something about form key validation being crucial for POST requests in Magento. Could it be option C?
upvoted 0 times
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