Response code of 200 on Netlify Forms but the submission is not showing up on dashboard

[hrishikesh]

The problem is explained here:

[Support Guide] Form problems, form debugging, 404 when submitting

Last reviewed August 2023 Please give these debugging tips a try before making a new post. If none of the suggestions work, please include the information that we request at the end of this guide in the new post that you create. Thank you! Why use Forms? Forms are one of the most useful parts of modern websites because they allow us to capture input from our visitors. There are many ways to use forms: contact forms, such as contact forms and sign-up forms. Seeing as there are many types of fo…

Quoting:

@Dennis

Submits fine, yet no submissions in UI:

When you’re absolutely sure that the submissions are being sent correctly by the browser, but you’re not seeing them in the UI, there are 2 common scenarios that might cause this:

1. The endpoint that you’re submitting to has a redirect. For example, if you’re using JavaScript to submit like: fetch('/'... and you’ve a redirect rule like /* /foo 301!, submissions would probably not work. This is because the submissions are being “consumed” by the redirect rule. Instead, you cans set the endpoint to any other page that doesn’t redirect. Note: 200 rewrites could cause problems too.
2. You’re using some kind of server side rendering to render the endpoint. For example, if you’re rendering the page that you’ve set as the endpoint using a serverless function, you’d not seem the submission in the UI. The solution is similar, set the endpoint to a page that already exists.