Event attendance QR code (advanced)

How to generate a contact-specific QR code that submits an email address to a form, enabling automatic attendance registration when scanned at an event.

This article applies to Form (Legacy). For the current form editor, see Forms.

This guide shows how to build a QR code that, when scanned, submits the contact's email to a specific eMarketeer form to register event attendance.

The standard QR code generator can produce a QR code from any contact field. This advanced variant points the code at a form receiver URL, so scanning the code automatically registers the contact. Some HTML and URL knowledge helps before you start.

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What you need to start

You need a form on your account where attending contacts will be registered. You will pull two values out of the form's website integration code to build the QR URL.

The QR code generation URL looks like this:

https://app.emarketeer.com/library/qrcode/php/qr_img.php?s=6&d=https://app.emarketeer.com/ext/form/receiver.php?m=M_VALUE%26NAME_VALUE=<% contact field="email" %>

The placeholders M_VALUE and NAME_VALUE are what you will replace with values from your form.

Get the M-value and NAME-value from the form

Open the form where attendance should be registered, then open its Publish Form page.

The Publish Form page with numbered markers on the Publish Form menu, the Website Integration section, the domain field and the Get Code button

Guide to form integration code

1. On the form's card in the campaign, click the Publish icon. You can also open the menu next to the form name and choose Publish Form….
2. Find the Website Integration section on the Publish Form page.
3. Under FORM, type any domain in the domain field. For example, emarketeer.com.
4. Click Get Code. The code appears below the button.

Next, find the two values in the integration code. The M-value identifies the form. The NAME-value identifies the specific question — in this case, the question that stores the contact's email address. Look for:

• <input type="hidden" name="m" value="M-Value">
• <input type="email" name="NAME-Value">

The form integration code with the m-value and name-value highlighted

The M-value and NAME-value

Example values:

• M-value: 353750ae84ccbd4692021cd1e93a90145287fee
• NAME-value: query_2027106_16_3

Build the QR code URL

Replace the placeholders in the QR code URL with the values from your form. Starting from this template:

https://app.emarketeer.com/library/qrcode/php/qr_img.php?s=6&d=https://app.emarketeer.com/ext/form/receiver.php?m=M_VALUE%26NAME_VALUE=<% contact field="email" %>

The finished URL looks like this:

https://app.emarketeer.com/library/qrcode/php/qr_img.php?s=6&d=https://app.emarketeer.com/ext/form/receiver.php?m=353750ae84ccbd4692021cd1e93a90145287fee%26query_2027106_16_3=<% contact field="email" %>

Use the QR code URL

Paste this URL into an image block in an email or app component as if it were a regular image URL. When the email or app is distributed, each contact gets a unique QR code containing their email address. Scanning the code registers them to the form.

To use this URL on an app component's QR code page, you need Developer permissions on your user account. Enable Developer Mode on the app's editing page, open the QR code block, switch to the HTML tab, and replace the standard QR code URL in the HTML with your new one.