> For the complete documentation index, see [llms.txt](https://doc.customfit.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.customfit.ai/master/installing-customfit-code-snippet/installing-the-code-snippet-on-salesforce-commerce-cloud.md). # Installing the code snippet on Salesforce Commerce Cloud This doc explains how to deploy the CustomFit.ai code snippet inside a Salesforce Commerce Cloud storefront so you can run A/B tests, personalization campaigns, and behavior-based targeting. **Prerequisites** Make sure you have: * Admin access to **Salesforce Commerce Cloud Business Manager** * Permission to edit ISML templates * Your CustomFit.ai project script (available in your CustomFit dashboard) ### Step 1: Identify the Global Head Template CustomFit’s script must load on every page of your storefront. In most Salesforce Commerce Cloud implementations, the shared `` section is controlled by a template such as: ``` header.isml ``` This template ensures your tracking script runs consistently across homepage, category, product, and checkout pages. If your project uses a custom structure, locate the ISML file responsible for rendering the `` tag globally. ### Step 2: Insert the CustomFit.ai Tracking Script Locate the ISML file responsible for rendering the global `` section of your storefront. In most Salesforce Commerce Cloud implementations, this is the `header.isml` template. You can access it either through your local development environment or directly from Business Manager by navigating to: **Administration → Sites → Manage Sites → \[Your Site] → Development → Templates** Once there, open the template file that controls the shared head markup across your site pages. Insert the CustomFit.ai code snippet inside the `` section of the template. Placing it here ensures the script loads consistently across all storefront pages.