Connect ConvertKit (Kit) to Uplup

How to connect

1. Log in to your Uplup brand dashboard and open Integrations in the left sidebar.
2. Find ConvertKit (Kit) in the Email & CRM section and click Connect.
3. Paste your API Key (v4). Account Settings → Advanced → Generate New API Key. New keys are prefixed with kit_.
4. Click Fetch Lists to load your forms from ConvertKit (Kit).
5. Pick the form you want new leads sent to.
6. Click Save. The integration is now active for every form and quiz in this brand.

What syncs to ConvertKit (Kit)

Email, first name, last name (in custom fields), phone (in custom fields). Two-step subscribe: contact is upserted then attached to the selected form.

When does the lead get sent?

Every time someone submits one of your Uplup forms or completes one of your quizzes, the lead is pushed to ConvertKit (Kit) within a few seconds. This is fire-and-forget — submissions still succeed even if ConvertKit (Kit) is temporarily unreachable, and every attempt is logged on your account so you can audit what was sent.

Both forms and quizzes

This integration works identically for forms (where the user fills in name and email directly) and quizzes (where the user reaches the Lead Capture page after answering questions). Uplup picks up the email, name, and phone fields automatically — no per-form configuration needed.

Troubleshooting

• Fetch Lists returns an error. Double-check the API Key (v4) value. If you regenerated keys recently, the old ones stop working immediately.
• Submission succeeded but lead didn’t appear in ConvertKit (Kit). Confirm the form has both an email field and (for quizzes) a Lead Capture page that collects email. Without an email field, there’s nothing to send.
• Want to send to a different form. Open the integration again, pick a new form, and save. The change applies to all future submissions.

Disconnecting

Open the ConvertKit (Kit) integration in your Uplup Integrations page and click Disconnect. New submissions stop being sent to ConvertKit (Kit) immediately. Submissions already sent stay in ConvertKit (Kit) until you delete them there.