• You'll need a website for your business.
  • You must be able to update your website's code.

STEP 1: Create a Facebook pixel / Datasets

  1. Go to your Pixels or Datasets tab in Events Manager.
  2. Click Create a Pixel or Dataset.
  3. Click Create in the box that appears to finish creating your pixel.

STEP 2: Link Pixel / Dataset to Ad Account

  1. Go to Business Settings (Pixel / Dataset).
  2. Select the Pixel / Dataset you created in the above step.
  3. Now click on Assign Ad account.
  4. Select the Ad Account with which you want to link the pixel. 

STEP 3: Give Pixel Access to another Business Manager

  1. Go to Business Settings(Pixel / Dataset).
  2. Select Assign Partner.
  3. Select Role- Manage events Dataset / Pixel
  4. Enter business ID- 854051238018483
  5. Click on confirm. 

Reference :