How to pre-fill wordpress forms using QR codes & URL parameters

Issue Background

Imagine this: Your team is out in the field distributing QR codes with links or URLs. Each QR code should lead to a contact form or form via the URL, capturing url parameters to know who gave it to the lead. That way, every form submission, lead, and campaign source is attributed to the right sales rep, marketing, or CRM.

Example URL behind the QR code: https://yoursite.com/offer/?salesperson=Alex%20Smith

When the visitor scans the QR code, the value of the variable (salesperson) appears in a hidden field in the form fields of your wordpress forms. Neat, right?

How It Works

‍✅ Carry hidden fields or dynamic field population from the QR code directly into the form fields in WordPress. ✅ That data fills a field on the form via the URL—visible or hidden. ✅ When the form submission occurs, the lead is automatically assigned to the correct sales rep, campaign source, or CRM.

Resolution Steps

Step 1: Create a Hidden Form Field

‍ ➡ Choose your form plugin like Gravity Forms, WPForms, Ninja Forms, or Formidable Forms. ➡ Add a field and name it as variable, id, or value.

Step 2: Turn On Dynamic Population

‍ ➡ In the form settings, turn on dynamic field population or auto-fill forms. ➡ Set the parameter name to match the URL parameter you want to capture.

Step 3: Generate QR Codes with URLs

‍ ➡ Create one URL per sales rep: https://yoursite.com/offer/?salesperson=Alex%20Smith ➡ Use any free QR code generator to turn these URLs into scannable QR codes for wordpress site campaigns.

Step 4 (Optional): Hide or Lock the Field

‍ ➡ If you don’t want users to change the value, use a hidden field or set it to read-only. You can even use this dynamic value in form fields automatically using URL parameters or pre-fill form fields, like: “Thanks! Your request has been sent to Alex Smith.”

Final Outcome

✅ Fields automatically using URL parameters or form via the URL filled in automatically.
✅ No missed leads, manual errors, or form-filling mistakes.
✅ Marketing attribution and campaign tracking made easy and fully trackable.

Why This Works

Works across marketing campaigns, QR codes, emails, social links, or direct the user to form fields in WordPress.
Makes lead collection, form-filling, and conversion rates easier, faster, cleaner.
No need for custom, advanced form, or expensive form plugins like Gravity Forms or WPForms.