Is not empty

Is not empty checks that a field has an answer — any text, selection, upload, signature, or numeric value counts as filled. Use it to reveal follow-ups once they start typing, gate routing on “attachment provided”, or require downstream logic only after a prerequisite field is completed.

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When to choose this

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Exact behavior

Filled means not any of:

• null
• ""
• []

Whitespace-only text (" ") is not empty — it counts as an answer. No comparison value required. For signatures, Studio may show Is signed — same as Is not empty for that block type.

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Which field types

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Blank / unanswered answers

Does not match when empty — this operator is the inverse of Is empty.

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Configure in Studio

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Worked examples

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Reveal details after company name

When Company is not empty → Then Show blocks VAT ID, Billing address

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Attachment triggers review page

When Supporting document is not empty → Then Jump to page Document review

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Signed waiver enables submit

When Waiver is signed → Then allow submit (remove Hide submit paired rule)

Often paired: Is not signed → Hide submit.

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Any date picked for scheduling

When Preferred date is not empty → Then Show blocks Time slot

Use Equals / comparisons for specific dates.

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Test on fill

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Common mistakes

• Using Is not empty when you need a specific value — add Equals or Contains.
• Using on toggle — unchecked may still be a valid “No” answer; use Equals.
• Assuming spaces are empty — " " is not empty.

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Troubleshooting