How can I automatically log in a participant?

If your campaign is configured to NOT have participants login/authenticate:

• Manually via participant: Your participants can enter the same email into the signup form and their existing information will be returned.
• Automatically via GrowSurf window: To automatically authenticate the participant, use the data-grsf-email attribute with the GrowSurf window when using the CSS class .growsurf-open-window.
• Automatically via embeddable elements: To automatically authenticate the participant, use the data-grsf-email attribute with the GrowSurf embedded form.
• Automatically via JavaScript: To automatically authenticate the participant, use the growsurf.addParticipant() function.
• Automatically via grsf_email URL parameter: You can provide your participants a URL with a grsf_email parameter. If they clicked on the link and landed on the webpage, the person will be automatically logged in (or added as a new participant, if they did not already exist).

If your campaign is configured to have participants login/authenticate:

• Manually via Participant: Your participants can click the 'login' link at the bottom of the signup form and one-time login link will be emailed to them.
• Automatically via Participant Auto Authentication: You can set up Participant Auto Authentication to automatically log participants in (requires server code).