Conditional Form Fields

Hey there! In this article, we’ll show you how to set up conditional form fields in Spreadly, so your forms only ask for what’s actually needed.

Let’s walk through a classic example: You want a user to enter a phone number only if they don’t provide an email. If they type in their email, the phone field disappears (and isn’t required anymore). Magic, right?

1. Basic Setup: Add Your Fields

Start by dragging your fields into the form. Here’s what it looks like at first:

• Name field is always required.
• Email and Phone are added, but not required yet.

2. Add Conditional Logic to “Phone” Field

Now, let’s make the Phone field only show when Email is empty.

• Click on the “Show, if” dropdown next to the Phone field.
• Select Email so we’re basing the condition on the Email field.

Check out the menu of conditions you get:

• Choose Empty (no need to enter a value!)

3. Make the Phone Field Required (Only When Shown)

Turn on the “Required” switch for the Phone field. This means:

• If the phone field is visible, it must be filled out.
• If it’s hidden (because the user gave an email), it’s not required.

Here’s how the final setup looks:

• Name: Always required.
• Email: Shown (but not required here).
• Phone: Only shown & required if Email is empty.

What Does This Mean for Your Users?

• If the user enters an email, they won’t see the phone field at all.
• If they leave email blank, they must enter a phone number to submit the form.

Updated on: 17/11/2025