Your facebook pixel should be associated with the facebook account that is managing the facebook page of your business.
Navigate to https://business.facebook.com/ in your browser.
If you already have a facebook business account setup then your name will appear in the top right hand side. If not, please create an account and follow the prompts.
In the top left corner, click on the hamburger menu (3 lines).
Choose Business settings and then Data Sources
Choose Pixels and Enter the ID you want to use. I recommend the name of your business page followed by the word pixel. Click Add.
Enter your website URL
To allow me to install the pixel on your website, click Set up the Pixel Now
Choose the option to email the code to your web developer and email me the code to firstname.lastname@example.org.
Alternatively, choose manual, copy the code and add to an email and send to me.