Pass context into a form
Use hidden fields for link-supplied context. Visible-answer prefilling is a separate capability that must be verified.
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Steps
- Define the context field under Design → Logic → Customize using data → Hidden Fields and save it.
Definitions identify the fields expected in the respondent URL. Supply harmless URL-encoded values when testing. - Append the exact field name and a URL-encoded harmless test value to the copied respondent link, preserving its existing query parameters.
Use the current respondent URL rather than a builder URL. - Complete a synthetic response and verify the context in the intended output.
- If you need a visible question answered in advance, confirm the supported prefill mechanism with support instead of guessing a URL parameter.
Check before you rely on it
Hidden fields do not automatically fill every visible question or verify the supplied value.
If you need help
Test a missing or changed value. Keep sensitive information out of links.
Contact support with the relevant screen, time, and a redacted description. Keep credentials and private respondent information out of screenshots.