How to use One click sign-up

Let's say you have an existing mailing list and don't want to ask them to sign up again on ReferralHero.

You could import them using our import feature, but maybe you don't want to import all of them. Instead, you want to make sure that the participants in your campaign are the most engaged.

"One click sign-up" is the solution to this problem.

The "one-click signup" flow is very simple: you send out contest invite links to your email list. When they click on the link, ReferralHero will automatically add them to the campaign, without sending a confirmation email. We'll also automatically open up the sharing screen of the form, which means people can start sharing their referral link immediately.


  • people who click on the link will sign up without the need to verify their email address
  • people who sign up through this feature won't count as referrals even if they come from a referral link
  • if ReCaptcha is enabled in your campaign, this feature won't work
  • if you have enabled Terms and Conditions in your campaign, this feature won't work

In order to use "one-click signup" you need to:

  • enable this feature on your dashboard
  • send out contest invite links to your mailing list

Enable one-click signups

If you want to enable this feature for your campaign, simply go to your campaign dashboard > Edit > Widget > Global options and switch on Enable one click sign-up as shown below:

Send out one click sign-up links to your existing users

Now that you have enabled this feature, you simply need to send people to your contest page using the right link.

The link you use to send people to your contest page needs to be formatted in a certain way. More specifically, your link must contain the "rh_email" parameter, whose value is the email address of the person you want to sign up.   

Optionally, you can add the "rh_name" parameter to send the name of the subscriber, the "rh_extra_field" parameter to send the value of the extra field and the "rh_extra_field_2" parameter to send the value of the second extra field.

For example, if your contest is on, you will need to send out links like address where <Email address> is the email address of your invitee.

A real-life example

In real life, you are likely to send out invites to your contest through your favourite autoresponder or email platform, eg: MailChimp, ActiveCampaign, etc.

In this example, we will use MailChimp, but the theory is the same for virtually any email platform.

Let's imagine this scenario:

  • you have a list on MailChimp with 2,000 subscribers and you want to send them a link to sign up to your contest automatically, with no extra effort.
  • Your contest page is located at

You can send your list a newsletter with their unique sign-up link by using Mailchimp merge tags.
As you can see in the gif below, the link used is*|EMAIL|*. MailChimp will automatically replace the merge tag *|EMAIL|* with the email address of each recipient. 

Every autoresponder on the market uses merge tags. If you are not sure how to use merge tags on your platform, get in touch with their customer support.

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