Setup Multiple Facebook Pixel codes on checkout page

Can we add multiple Facebook Pixel codes on checkout page?

My client has already setup one pixel id from Facebook sales channel that is showing and working fine on checkput page but now he wants to add one more pixel on same shopify store, I have tried to add second pixel code in checkout settings under additional scripts but its not working,
Please can you help me?
My store url:
https://glowandsave.com/

Pixel ID which is working fine on checkout page: 3326079960871963
Pixel ID that needs to configure on checkout page: 838380344021283

I am using sense theme.
Any quick help Please?

Hi,

Reference this:

https://developers.facebook.com/docs/meta-pixel/guides/track-multiple-events#multiple-pixels

This pixel code is being loaded via Trekkie - Facebook & Instagram App (Sales channels > Online Store > Preferences)
3326079960871963
This pixel code script currently commented out.
838380344021283

I would test a few scenarios via Facebook test events tool after trying some changes.
https://www.facebook.com/business/help/2040882565969969?id=1205376682832142

Add a secondary pixel code via preferences - if its an option.
Add a new script with the two pixel codes referencing trackSingle and trackSingleCustom leaving preferences as is.
Temporarily disable or remove pixel from preferences, and use new script referencing trackSingle and trackSingleCustom

Regards