Hi, @marioS97. Having someone review the code you write is normally a job that you pay someone to do. Our support team can troubleshoot Netlify’s services and the code we write but we do not have enough resources to troubleshoot customer code.
@nathanmartin (who is not a member of the support team) or someone else here on this support forum may be willing to debug your code for free but our support team does not have time to do so.
We can provide support for custom code with an Enterprise plan that has a specific add-on to include this this type of support. To clarify, even for Enterprise teams, we do not troubleshoot customer code unless you pay extra for that add-on service.
I can say that what you want to do is definitely possible at Netlify. You would need to write the code in a way that each submission was an individual HTTP request to submit the form.
In other words, the client-side javascript would create a new form submission for each user. When the submit button is clicked, the client-side javascript will make POST requests for each form submission required. So, if information is enter for ten people, then ten POST requests would been sent with the submissions details to the form endpoint.