What will happen on reaching the submission limit in a plan?
You will be notified via email when you have reached the 90% of form submission. You will not be able to access the form when you have reached the submission limit.
However, the submission limit will be reset automatically every month based on your billing cycle. Refer to this link to view your Account Usage in Zoho Forms. You can also purchase Add-ons to increase the storage limit in your Zoho Forms account.