Please make sure you have completed both Steps 1 and 2.

Step 1 - Get your Facebook Page ID

Step 2 - Grant page access

Now on to Step 3 - Get your Facebook Pixel ID

Navigate to your Facebook Page on the left of the homepage

On the left hand menu of the Business Page click Ad Center:

Next, hit "Create Ad" on the right hand side followed by the goal of “Get More Website Visitors”:

Scroll to the bottom and choose the toggle to turn on Facebook Pixel:

If the pixel ID is not there, click into the "Learn More" on how to set up the pixel and choose "Email Developer Options". This also will work.