Conditional logic

Logic makes a form react to answers. There are four tools, all in a question’s Advanced tab:

Tool	Does	Example
Condition Visibility	Shows a question only when conditions match	Show Company name only when Employment is Employed
Fill from another question	Fills in, filters or locks a question based on others	City options depend on State
Show a message when	Shows an alert while people fill in the form	Warn when Age is under 18
Page logic	Jumps between steps	Skip the Spouse details page when Married is No. See Layout & steps.

Conditions

All logic tools use the same condition builder: Question, Comparison, Value.

Comparison	True when the answer…
equals / not equals	is / isn’t exactly the value
contains / does not contain	includes / doesn’t include the text (or, for Checkboxes, the option)
is empty / is not empty	wasn’t answered / was answered
greater than / less than	is more / less than the number
≥ (gte) / ≤ (lte)	is at least / at most the number
is one of / is not one of	matches any / none of several values

ALL or ANY, and groups

Choose whether ALL conditions must match (AND) or ANY of them (OR). For more complex logic, select Add group to nest a group with its own ALL/ANY. For example:

Show Visa details when Country is not India AND (Purpose equals Work OR Stay length greater than 90)

Show or hide a question

Open the question, then Advanced → Condition Visibility.
Select Add first condition and build the rule.
Select Apply visibility.

The question is hidden until its conditions match. Hidden questions:

aren’t required, even if marked Required, while hidden.
aren’t submitted. If a respondent fills one in and then changes an earlier answer so it hides, that answer is dropped.
are checked on the server too, so the rule can’t be bypassed.

On the canvas the card shows Only shown when ….

Fill from another question

Advanced → Fill from another question opens Field linking, with three tabs. Changes apply when you select Save Changes.

Basic Mappings

Settings that depend on one “parent” question. Select the parent first.

Setting	What it does
Enable Cascading Options	“Filter which options are available based on the parent selection.” For each parent option, choose which of this question’s options appear. Example: State → City.
Global Defaults	Min Default and Max Default for numbers or dates.
Option Overrides	A different Min Override / Max Override for each parent option. Example: Ticket type = Student allows 1–2 tickets, Group allows 5–20.

Auto-fill Rules

Set this question’s answer when conditions match. Select Add Rule, build the Trigger Conditions, then Then set this field to… using an Auto-fill Mode:

Mode	What it does
Enter value	Fills in a fixed value you type.
Copy from field	Copies another question’s current answer. Example: Billing address copies Shipping address when Same as shipping is ticked.

A rule can also limit Available Options and Limit Min / Limit Max while it matches. Respondents can still change an auto-filled answer unless you also disable the question.

Restriction Rules

Make the question required or disabled when conditions match. Choose the Action Type (Make Field Required or Disable Field) and whether matching should Enable (Apply Action) or Disable (Remove Action).

Example: make GST number required when Customer type equals Business.

Custom alerts

Advanced → Show a message when opens Custom alerts: messages that appear while respondents fill in the form.

Select Add first alert.
Choose the Type: Info, Warning, Error or Success.
Write the Message.
Under Show this alert when…, add conditions and choose ALL conditions match (AND) or ANY condition matches (OR).
Select Apply alerts.

Alerts guide people but don’t block submission. To block, use a validation rule or make the question required.

Examples:

Warning when Years of experience is less than 2: “This role usually needs 2+ years. You can still apply.”
Info when Delivery equals Express: “Express delivery costs ₹150 extra.”
Success when Coupon is not empty: “Coupon applied at checkout.”