Ensure to refrain from utilizing the test workflow button while conducting trials on the Facebook Conversion API within Workflow.
Always save and publish and use one of these triggers to test your conversion..
Trigger should be a input trigger like
Form Submission
Survey submission
Appointment Submission (from booking widget)
2 step order form
For appointment it will only work with:
“Customer Booked appointment” not with “appointment” as appointments is general trigger and “Customer Booked appointment” is the trigger for widget
Lead value is required if you will use the Purchase event or else you can keep it blank.