We have a one system where user will have to fill up the registration form. After filling the form we are submitting those data to hubspot through API request.
Here is that API endpoint which we are using to submit data from website to hubspot through AJAX request.
API endpoint: ‘https://api.hsforms.com/submissions/v3/integration/submit/PORTAL_ID/FORM_ID’
Now problem is that in many cases it is working fine but in some cases contact data are not store on husbpot side.