Submission Limit
HTML Forms Premium includes a setting, for each form, that lets you define a Submission Limit. This can be found in the Settings tab of your form. By placing a value in the field, you can define how many submissions your form is allowed to accept.

Your form will no longer load when the number of submissions meets the Submission Limit. The message that displays when this situation occurs can be set in the Messages tab. Find the field called Submission Limit Reached and enter in the text you want to show users who visit a form that has met its limit.
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There are two ways to show your forms on your WordPress posts or pages. You can either use the shortcode or the block found in the WordPress block editor.
Roman Grigorian has written a great step-by-step guide on how to use the HTML Forms plugin with Google Tag Manager, Google Analytics, and Google Ads to track submissions: https://romangr.com/blog/gtm-html-forms