How hidden fields receive values
A hidden-field definition names the value to read from the link. The link supplies that respondent’s value.
Select a screenshot to enlarge it.
Steps
- Create the field under Logic → Customize using data → Hidden Fields. Use a stable name such as campaign.
Definitions identify the fields expected in the respondent URL. Supply harmless URL-encoded values when testing. - Save the definition and copy the respondent link from Share.
Use the current respondent URL rather than a builder URL. - Keep its existing parameters and append the exact field name with a URL-encoded test value.
- Test two links with different campaign values and one link with no value.
- Check the received values in your intended Results or integration workflow rather than assuming the visible link was processed.
Check before you rely on it
Field names must match exactly. A missing parameter is not the same as a verified identity or an authorized access token.
If you need help
Use only the minimum non-sensitive context needed. Link values can be copied, edited, and exposed by the browser.
Contact support with the relevant screen, time, and a redacted description. Keep credentials and private respondent information out of screenshots.