Conditional visibility

Show or hide a field based on the value of other fields.

Where

In the form designer, select a field → inspector right side → Visibility section → Show this field when… dropdown.

How

Two ways to author the predicate:

1. Visual builder (default). For each rule you pick a field + operator + value. Rules combine with AND or OR. Handles the 99% case.
2. JSON-Logic mode. For the 1% complex case, write the predicate as a JSON-Logic expression. Example: {"and": [{"==": [{"var": "status"}, "Churned"]}, {"!=": [{"var": "account_manager"}, null]}]}.

Re-evaluation

The predicate is evaluated client-side on every field change AND server-side at save time. So:

• The field hides/shows live as the user types.
• Even if a user tampers with the form HTML to fill a hidden field, the server-side check rejects the save.

Common patterns

• Status-dependent fields: hide "Churned reason" unless Status = Churned.
• Optional contact methods: show the "Phone number" field only when "Preferred contact: phone" is selected.
• Role-dependent fields: hide a sensitive field unless the user has a specific WP role. Conditional visibility supports a current_user.role variable.