The Radio element is for when you want visitors to pick exactly one option from a set. Gender, title, preferred contact method, favourite category — any question where "only one answer is valid" is where Radio belongs.

It's the single-select twin of the Checkbox element, with the added bonus of an Other option toggle that lets visitors type a custom answer if none of your pre-defined choices fit.

Add a label name to the Radio element to enhance accessibility. It works as a group name for the alternatives, which also helps screen readers understand the content.

A good label describes the question as a whole — for example, "How did you hear about us?" — while the Radio options are the individual answers.

In the Style section on the right, adjust space between radio buttons. Set colour for border and fill with the colour picker. Click the X icon next to the icon to make it transparent.

Activate Other option to create an additional input field for a custom choice. If a visitor doesn't find any of the listed options suitable, they can pick this option and fill in their own answer as text.

This is useful when you don't want to limit the visitor but also can't list every possible answer — for example, "How did you hear about us?" with common channels listed plus an Other option for anything unusual.

Activate Required field if the field is mandatory. If toggled on, visitors will not be able to submit the Form without selecting an option.

This is one of the single most-misunderstood parts of the Radio element (and it applies equally to Checkbox and Dropdown). Two separate things control what happens when a visitor picks an option:

The two are set independently. They can — and often should — be different. A friendly, descriptive label for the visitor, and a clean, short, structured value for your data.

The Form stays warm and respectful; the Audience data stays clean and segmentable.

You can add options from either side of the split, and the editor keeps both sides in sync:

Both methods produce the same result — the choice is just about which side you want to think about first. Design-first people tend to start in the Canvas; data-first people tend to start in Mapping.

If you try to proceed to the next step without filling in the Option values in Mapping, Apsis One will block the activation and prompt you to go back and make the required changes before trying again. You can't publish a Form with unmapped options.

This is the system protecting your data quality.

Open the Mapping section on the right. This is where you set the values that will be stored on the Profile that fills out the Form.

When the Radio element is mapped to an Attribute (for example, Gender), the selected value appears directly on the Profile — usable in Segments, for personalisation, and for branching Marketing Automation flows.

If the Radio element is mapped to Form response only, the value is saved as Event data. Find it in Profile view under Form & Page Interactions — click the Submit activity in the timeline.

Classic acquisition question. Four or five likely channels, plus the Other option toggle for anything unusual. Map to a Source Attribute. Over time, the pattern of answers helps you understand where your best-quality leads actually come from — which informs marketing spend.

When Profiles visit a preference centre, a Radio asking "Which best describes you?" (e.g. Parent / Professional / Student / Other) lets you update segmentation without overwhelming the visitor. Use Required if the answer is essential for later personalisation.

For a campaign Form, ask "Which product are you most interested in?" with a Radio listing your top categories. Only one answer helps the follow-up communications stay focused rather than trying to cover everything.

For a loyalty programme sign-up, use Radio for preferences that must be singular — preferred contact time (Morning / Afternoon / Evening), preferred language, preferred store. Map each to the right Attribute so communications can honour the preference.

Cause. You used Radio where Checkbox was the right element. Radio enforces single-select.

Fix. Swap to the Checkbox element if multiple selections should be possible.

Cause. The Other option toggle isn't activated.

Fix. In the Style panel on the right, switch Other option on. Visitors will then see an extra radio choice with a text field attached.

Cause. Required field isn't toggled on. Radio doesn't force a selection unless you require it.

Fix. Toggle Required on if the answer is genuinely needed. Otherwise, accept that some submissions will leave it blank.

Cause. The visible label in the Canvas and the Option value in Mapping aren't consistent. They're set separately.

Fix. Make sure each option's visible label and its Mapping value match up.

For a wider set of Form issues, see Forms & Pages: Troubleshooting.