First, create your pixel in Meta.
In Fienta, enter your pixel number into the form under Settings > Integration. From now on, all your published events send the following actions to Facebook:
Event page view.
The buyer has chosen at least one ticket.
The buyer has chosen tickets and clicks to the next step to enter their contacts.
The buyer has entered their email and other contact information. This event includes Meta's Advanced Matching parameters.
The buyer has chosen a payment method and proceeds to complete the payment.
Sent after successful payment. This event includes data about purchase amount and currency, which is sent to Facebook.
Read more about Meta Pixel.