---
title: Show relevant questions with conditional logic in Infinity3
description: "Use conditional logic to show extra questions only when they are relevant to a respondent’s answer. #### Before you start You’ll need permission to edit the form or survey. Add the required fields and survey slides before creating rules. For…"
url: "https://www.infinity3.co.uk/help/show-relevant-questions-with-conditional-logic-in-infinity3/"
updated: "2026-10-08"
category: "Infinity3 Platform / Forms & Surveys"
---

# Show relevant questions with conditional logic in Infinity3

Use conditional logic to show extra questions only when they are relevant to a respondent’s answer.

#### Before you start

You’ll need permission to edit the form or survey. Add the required fields and survey slides before creating rules.

For example, ask someone who selects “Existing customer” for additional details about the service they already use.

#### Add a rule

1. Open **Sites** → **Forms** or **Surveys** → **Builder**.
2. Open the intended item.
3. Open **Conditional Logic**, where available.
4. Choose a **Show/Hide** action.
5. Select the answer field, comparison and value that should control the rule.
6. Select the fields or supported content to show or hide.
7. Save the rule and builder changes.

For a supported survey, **Jump To** can send respondents to another slide when they continue.

#### Test every path

Preview the form or survey and try each relevant answer. Change an earlier answer and check that the displayed questions update correctly.

Check required questions on every path and complete test submissions on desktop and mobile.

#### Things to know

- Rules are evaluated in order; later matching Show/Hide rules can override earlier ones.
- Keep overlapping rules to a minimum.
- Conditional Logic v2 may require a newly created or cloned survey.
- Rules inside a form are separate from workflow conditions used for follow-up.

If a path behaves unexpectedly, contact Infinity3 with the form or survey name, rule and answers used in the test.