8 thoughts on “How to integrate Contact Form 7 with ConvertKit without using plugin”

1. syntax error, unexpected ‘$url’ (T_VARIABLE)
   this error i am getting on thrive theme function file

   Reply

   1. Hi Shamsher,
      It looks like problem with $url variable in line # 13, make sure you have correct URL with form ID.

      Reply

2. Hi,
   Not working.
   Using ‘Content-Type: application/json; charset=utf-8’ instead (See API docs) made it work. Also, note that you have a typo on line 12 ( ‘;’ at the end of the ID).

   Thanks.

   Reply

3. This is works great! Only thing I can’t figure out is how to have it ONLY submit for ONE specific Contact 7 Form. Is that possible?

   Reply

   1. Hi Tamala,
      Yes, this is possible. You will need to wrap the code from line no. 5 to line no. 22 in this ‘if condition’ code where ’11’ is the form id. Please replace ’11’ with your own form id.

      if($contact_form->id == 11) {
      // put all code from line no. 5 to line no. 22 inside this condition
      }

      Thanks!

      Reply

4. Hi there, thanks so much for sharing the code. Could i please ask, is it possible to also capture custom field data? For example, say i wanted to separate first name and last name, as well as capture the phone number data from ContactForm7 into ConvertKit.

   Is there documentation on how to interface wordpress with convertkit?

   If you could please point me in the right direction, that would be great – thank you!

   Reply

   1. Hi,
      Yes, you can capture custom field data. For this, you have to update code and set first name, last name and phone number variable like in line #9:

      $first_name = $posted_data["your-name"];

      So your new variables like:

      $first_name = $posted_data["first-name"];
      $last_name = $posted_data["last-name"];
      $phone = $posted_data["phone"];

      Please make sure you put the correct field name in:

      $posted_data['contact form 7 field name']

      after that you need to update line # 14 where we have to pass json data like this:

      $jsonData = '{"api_key": "'.$api_key.'","first_name":"'.$first_name.'","last_name":"'.$last_name.'","phone":"'.$phone.'","email": "'.$email.'"}';

      Please also make sure you have custom field called phone in convertkit form.

      For more help, please contact us through our website’s contact page form. Thanks!

      Reply

5. After struglling trying to get the code to work, I found MailOptin to be quite easy to use in connecting CF7 to Convertkit. Good news is that it supports custom fields seamlessly.

   Link: https://mailoptin.io/connect/contact-form-7-to-convertkit/

   I am not a coder.

   Reply