How to map ConvertFlow fields to ConvertKit custom fields

Mapping form custom fields to ConvertKit custom fields

When adding custom fields to ConvertFlow form elements, you can choose to select from "ConvertKit fields". This allows you to map contact info entered into the ConvertFlow custom field, into the correct subscriber custom field in ConvertKit.

Mapping survey fields to ConvertKit custom fields

When you create a survey element in ConvertFlow, click on the "Map to custom field" dropdown to the right in the builder panel, and you can select from your ConvertKit custom fields

Mapping preset ConvertFlow fields to ConvertKit custom fields

On your website's Integrations page, when you have ConvertKit connected, you'll see a "Fields" button, that when clicked, allows you to map ConvertFlow's preset contact fields to ConvertKit custom fields. 
This is useful for mapping contact info added to ConvertFlow's preset fields through ConvertFlow's forms, that isn't already mapped to fixed fields in ConvertKit. For example, "first name" and "email address" are already mapped to ConvertKit for you. 
Just enter the data name of the ConvertKit custom field you would like ConvertFlow's preset fields to be mapped to, and you're set!