To ensure at least one checkbox in a group is required in Webflow and display an error message if none are selected, follow these steps:
<body> custom code area of your Webflow project:
```javascript
<script>
document.querySelector('form').addEventListener('submit', function(event) {
const checkboxes = document.querySelectorAll('input[type="checkbox"]');
let oneChecked = false;
checkboxes.forEach((checkbox) => {
if (checkbox.checked) {
oneChecked = true;
}
});
if (!oneChecked) {
event.preventDefault();
document.querySelector('.error-message').style.display = 'block'; // Assume error message class is 'error-message'
} else {
document.querySelector('.error-message').style.display = 'none';
}
});
</script>
```
.error-message with the appropriate class or ID of your error text element.
To make at least one checkbox required in a Webflow form group, add a custom JavaScript solution to check the selection upon submission and display an error message if none are selected. This requires leveraging Webflow's custom code capabilities as native support for this feature is unavailable.