If you are running Facebook Ads you can implement the Facebook Pixel through Google Tag Manager for your events in ACTIVEWorks Endurance. 
  1. Create a new tag – FB Pixel
  2. Choose Product – Custom HTML Tag
  3. Paste Pixel code from Facebook into HTML box under Configure Tag
  4. Set Fire On condition – Some Pages
    1. Select Confirmation trigger set previously
  5. Click Save Trigger
​​Facebook Pixel