ClickFunnels 2.0 forms · Splitlab Developers

For Splitlab to credit a ClickFunnels order to the variant the buyer saw, the contact has to carry their Splitlab visitor ID. You add a hidden mvt_visitor_id input to the funnel's form once; on pages running the Splitlab snippet, the snippet fills it in automatically.

Without the field, orders still reach Splitlab as workspace revenue, but they show as Unattributed: Splitlab cannot tell which variant the buyer saw.

Add it to every form that creates the contact

Usually that's the order form or opt-in form on the funnel's first step. A contact keeps the value it was created with, so later steps and upsells inherit it.

Using ClickFunnels Classic? Follow the ClickFunnels Classic forms guide instead.

Add the visitor ID field

Step 1. Open the funnel. In ClickFunnels, open the funnel your A/B test runs on.

Step 2. Open the editor and add an element. Click Editor (2) on the step with the form, then click ADD (2) where the new field should go, inside the form section.

ClickFunnels funnel view with the Editor tab marked

ClickFunnels editor with the ADD button marked inside the form

Step 3. Choose Form → Input. In the elements panel, open Form (3) and pick INPUT (3).

Elements panel with Form and Input marked

Step 4. Select the new input. Click the input you just added. Its INPUT settings panel opens (4).

Step 5. Set Input Type to Custom Type (5).

Input settings panel with the panel title and Input Type marked

ClickFunnels asks for a value until you fill in the next step; the red error is expected.

Input Type set to Custom Type, waiting for a custom type value

Step 6. Set Custom Type to mvt_visitor_id (6), exactly, in lowercase with underscores.

Step 7. Set Required to Not Required (7). Visitors never see this field, so it must never block the form.

Step 8. Hide it. Under Visibility, click the eye icon (8) so the field is hidden on every device.

Custom Type mvt_visitor_id, Not Required, and the Visibility eye icon marked

Then save the page. Repeat for each funnel step whose form creates a contact.

Use exactly mvt_visitor_id

The snippet looks for an input whose custom type is mvt_visitor_id. Any other spelling, such as visitor_id or mvt-visitor-id, stays empty and the order is unattributed.

Check it works

Open the live funnel page (not the editor preview) in a private window, so Splitlab assigns you to a variant like a new visitor.
Submit the form with a test email.
In ClickFunnels, open the new contact. Its mvt_visitor_id attribute has a value.
Complete a test purchase. In Splitlab, the lead's purchase shows Attributed, with the campaign and variation filled in.

If the contact's mvt_visitor_id is empty, check that the Splitlab snippet is installed on that page (ClickFunnels install) and that consent, if your site requires it, was accepted before the form was submitted.