Overview

You can use a tag manager to dynamically inject Affirm-related scripts on the promotions.

Google Tag Manager

GTM includes a feature to sequence tag execution, so that you can make sure Affirm JS is always loaded first.

Here is an example of how that would be setup:

Tag #	Contents	Location	Trigger
Tag 1	Affirm JS embed code	All pages	page load (auto)
Tag 2	Affirm promo html	Only pages where promo should be displayed	Fires after 'Tag 1'

Below is a screenshot of how these settings look in GTM:

Tag #	Contents	Location	Trigger
Tag 1	Affirm JS embed code	All pages	page load (auto)
Tag 2	Affirm promo html	Only pages where promo should be displayed	Fires after 'Tag 1'