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What this does

Conditional read-only lets you lock a field based on conditions. When the conditions are met, the field is visible but cannot be edited. It behaves like a read-only display. When the conditions are not met, the field is editable normally. This is different from the static Read-only toggle, which always locks the field.

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When to use it

  • Lock a “Price” field once a status field is set to “Approved”
  • Prevent editing an email field if it was pre-filled via URL
  • Lock a “Quantity” field after a “Confirmed” checkbox is checked
  • Protect a calculated field from being overridden in certain states

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Setting up conditional read-only

1

Click the field

Click the field in the canvas to open its settings panel.
2

Expand the Conditional read-only section

Expand the Conditional read-only section in the settings panel.
3

Toggle 'Read-only rule' on

Enable the toggle to reveal the condition trigger.
4

Set the conditions

Click the Read-only when… trigger to open the filter builder dialog. Add conditions using the visual builder. When these conditions are true, the field locks. When they are false, the field is editable. Click Done when finished.

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Settings

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How it differs from display conditions

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Common questions

The existing value is preserved and submitted as-is. If the field was pre-filled (via default value or URL parameter), that pre-filled value is submitted. If it was blank, it submits blank.
Yes. You could use conditional visibility to show the field based on one condition, and conditional read-only to lock it based on a different condition. Both can be active on the same field.
Yes. When a field has conditional read-only enabled, a Conditional lock (slate) tag appears in the top-right corner of the field card in the editor canvas.