To enable step tracking, go to the “Steps” tab in your Carrot app, and tap the “Enable Steps” button. Since your Apple Watch records your steps through Apple Health, select “Step Tracking with Apple Health”.
You’ll need to connect your Apple Watch with Apple Health by going into Apple Health, and into the “Sources” tab. Select your Apple Watch as the source for your step count information. Carrot will retrieve your step information that your Apple Watch sends to Apple Health. Please see https://support.apple.com/en-ca/HT204351