Double opt-in for event registration

Here you can determine whether your guests receive a double opt-in email to confirm their registration for the event.

Event > Settings > Section "Double opt-in for event registration"


Note: If you cannot see this section, it is probably hidden.

In order to display it, scroll to the bottom of the “Settings” tab and click on “Show more options”.
There you can set which sections should be displayed and which should be hidden so that you have a better overview. :)

Du kannst für das guestoo Back-End zwischen zwei Darstellungsoptionen wählen. Die Screenshots in der Doku basieren auf dem "Klassischen Design".
Hier siehst Du die Unterschiede, damit Du dich auch im "Modernen Design" zurecht findest: » guestoo Back-End-Design

Double-Opt-in (Short: DOI)

Double-Opt-in (Short: DOI) -

Here you can decide whether your guests must verify their registration again by clicking on a confirmation URL after submitting the registration form. This process is called Double-Opt-in (DOI for short). You can change this setting at any time.

For data protection reasons, we strongly recommend that you use the DOI procedure for your events!

We at guestoo do not offer legal advice, we only give you the opportunity to organize the registration process according to your wishes and needs.

If in doubt, discuss with your lawyer or data protection officer whether you can legally deactivate the DOI procedure for your purposes.

Further notes:
  • The guest also confirms their consent to the declarations in the registration form by clicking on the URL in the DOI email.
  • We log the DOI emails so that the declarations of consent can be used in compliance with data protection regulations.
  • If you deactivate the DOI procedure so that guests are immediately signed up after filling out the form, no declarations of consent will be saved and logged!
  • If a guest registers for another event at a later date with the same e-mail address and enters different master data, these are immediately transferred WITHOUT the guest having to confirm the registration and the data entered via the DOI e-mail
  • If you activate the DOI email, the master data entered for the other event will not be transferred until the guest has confirmed the registration using the DOI email.

Selection options

These are the options you have for implementing the DOI process in compliance with data protection regulations

Selection options - These are the options you have for implementing the DOI process in compliance with data protection regulations

Wenn das Double-Opt-in bei der Eventanmeldung aktiviert ist, hast Du folgende Möglichkeiten, um das DOI-Verfahren umzusetzen:

  • DOI: Email
    Your guests will receive the confirmation link via e-mail immediately after their registration.
  • DOI: SMS
    Your guests will receive the confirmation link via SMS.
  • DOI: SMS (Fallback via email)
    Your guests will receive the confirmation link by SMS. If there is an error with the DOI via SMS, a DOI email is sent as a fallback. Use this option if you want to make sure that the cell phone number provided is correct.

Select the best option for you and then click on “Save” in the top right-hand corner

Notes on sending SMS through guestoo
  • In order to enable SMS delivery, the SMS gateway must be set up under "Agency > Info". (See explanation here)
  • An account on SMS77 is mandatory
  • Please make sure that you have enough SMS credit, otherwise guests will not be able to complete their registration as no SMS can be sent.
  • When using DOI by SMS, the agreements are not sent in the DOI SMS and the SMS is not logged. It is only used to verify the SMS.
  • Make sure that the master data field "Phone number" is set as mandatory in the "Form" tab of your event!