How can I manually connect my Meta Pixel ID to my online store?

[athletify]

Trying to connect my Meta Pixel to my Shopify store, but I'm having trouble manually connecting the Pixel ID. 

On my account, it says "Behavior will be tracked with this pixel" and lists an ID, however it appears that Shopify generated that ID itself. When I click "Change" and "Create new", it generates another one. How would I enter the Pixel ID that is displayed on my Facebook Business account?

Thanks for any help!

[athletify]

Nevermind with this, I had no clue what I was talking about lol. This thread can be closed or deleted!

[1080]

@athletify  yes you can ask for the help.  you can add the Error screenshot.
here more way you can add pixel to your store 
1. you can install the tracking code into store settings files.
 2. you can install pixel via GTM.
3. you can choose any app from the shopify app store.