How to Create a URL that Pre-Fills a Value in an Eventact Registration Form

In Short

Here are the quick steps to pre-fill a form field using a URL:

1. Create the Field: Create the form field that will receive the pre-filled value.
2. Find the Field ID: Get the unique Field ID of that field. (e.g., FieldID = 1199996).
3. Take the Form URL: Use the base URL of your registration form.
   Example: https://reg.eventact.com/welcome?Form=888&c=999&Event=777&lang=en
4. Add the Parameter: Add the parameter &d=[field ID],[value] to the end of the URL.
5. Result: To pre-fill field 156576 with the value 123, the final URL is:
   https://reg.eventact.com/welcome?Form=888&c=999&Event=777&lang=en&d=199996,16

How It Works

To create a unique URL that pre-fills a specific field in an Eventact registration form, you need to add a query parameter to the form's base URL. The query part of a URL starts with a question mark (?) and is followed by one or more parameter-value pairs separated by ampersands (&).

The Parameter for Pre-Filling a Form Field

For Eventact, the parameter name used for pre-filling a form field is d. The value for this parameter is a combination of the field ID and the value you want to set, separated by a comma.

Syntax: &d=[field ID],[value]

Example URL

Here is a breakdown of a complete URL with a pre-filled value:

https://reg.eventact.com/welcome?Form=ikHw&c=i4wI&Event=icX8&lang=en&d=199996,16

• Base URL: https://reg.eventact.com/welcome?Form=ikHw&c=i4wI&Event=icX8&lang=en — This is the standard registration form URL.
• Pre-fill Parameter: &d=199996,16
• d: The parameter that tells Eventact to pre-fill a field.
• 199996: The unique Field ID of the form field you want to pre-fill.
• 16: The value that will be automatically entered into that field.

Benefits of Using This Method

This method is beneficial for two primary purposes:

• Tracking and Analytics: By creating unique URLs with different values for a tracking field, you can publish them in various locations (e.g., social media, email newsletters, partner sites). When attendees click on these links, the pre-filled value indicates the exact source of their registration, enabling you to measure the effectiveness of your marketing channels.
• Enhanced User Experience: You can pre-fill information that is already known, making the registration process smoother and faster. For example, you can pre-fill a user's discount code or a partner ID, reducing the number of fields they need to complete manually.

How to Find the Field ID

You'll need to obtain the unique Field ID for the form field you want to pre-fill. This is shown in the form builder:

1. Edit the registration form.
2. Click on the specific field.
3. In the properties panel, expand the Data section to see the Field ID.

The Field ID is a unique numerical identifier for each field.

Supported Fields

This feature is supported for:

• Text and numerical fields
• Menu fields
• Checkboxes
• Radio fields

To set a menu or radio field, the value you send in the URL is the numerical internal value of the option, not the visible text value.

Creating URLs for QR Codes

You can convert these unique URLs into QR codes. When scanned, the QR code directs the user to a pre-filled registration form. This works well for physical signs and promotions (posters, flyers) as it allows attendees to fill out the form with key information already entered for them.