Condition Types & Operators

Every logic rule is built from conditions — statements that are either true or false for the current respondent. This page is the reference for the four sources a condition can reference and the comparison operators available for each question type.

The most common source: branch based on the answer being given at this very question. Each question type contributes its own operators — a multiple choice question matches against its options, a numeric question compares values.

Conditions can reference answers given earlier in the form. This lets a later question react to anything the respondent has already told you — for example, showing a different follow-up depending on how an earlier rating went.

Both the default variables (price, score, segment) and your own custom variables can drive conditions. This is the backbone of calculators and scoring: accumulate values with variable-update actions, then branch once a threshold is crossed. See Update Variables with Logic.

Hidden fields carry values from the form URL — UTM tags, campaign IDs, known customer data. Conditions on hidden fields let one form serve multiple campaigns with different paths. See Hidden Fields.

Each question type has operators that match the kind of data it collects.

Notes:

• File upload supports a single check — answered — by design: whether a file was provided is the only thing logic needs to know about an upload.
• Variables use the numeric operators when they hold numbers and the text operators when they hold text.

Dropdown, phone number, address, and contact info questions cannot be used in logic conditions.

If you need branching on a selection, use a multiple choice question instead — it renders similarly and fully supports the is / is not operators.

A rule can contain multiple conditions, joined with and or or — and you can mix the two in a single rule.

Conditions are evaluated left to right with no operator precedence: each condition is joined to the result of the conditions before it. A rule reading:

A and B or C

is evaluated as:

(A and B) or C

Tip: for complex logic, split it into multiple rules instead of one long condition chain. Each rule is an independent group, and rules run in order — see rule order in the Conditional Logic guide.

Why can’t I add logic to my dropdown question? Dropdown questions don’t currently support conditions. Use a multiple choice question instead — it behaves almost identically for respondents and fully supports logic.

How do I check whether a file was uploaded? File upload questions support the answered operator — a rule can branch based on whether a file was provided.

Can I use the respondent’s answer as a variable value? No — variable actions assign static values or perform calculations. What you can do is calculate on variables (add, subtract, multiply, divide) and reference variables in conditions. See Update Variables with Logic.

Can a condition reference the Thank You Page? No — conditions reference answers, variables, and hidden fields. The Thank You Page is a branching jump target, not a condition source.

• Conditional Logic
• Skip Logic
• Update Variables with Logic
• Hidden Fields