Step 4. Configure Stape Server GTM extension for Salla

1.  Log in to your Salla account. To install the app, buy it from the Salla App Store (7-day free trial available).

2. Configure the app's three sections: General, Data Layer, and Webhooks.

2.1. General section - configures the GTM snippet installation on your Salla site's pages.

• Insert GTM snippet - enable this option (adds the GTM snippet).
• Specify WEB container ID - paste your GTM Web container ID (found in the Accounts tab of your GTM account) in the format GTM-XXXXXXX.
• Add custom domain - enter your tracking subdomain (should start with https://, e.g., https://gtm.example.com). Haven’t configured a custom domain yet? See Stape’s guide on subdomain setup.
• Add Custom Loader - if using Stape, paste your Stape container identifier (see image below).

• Cookie Keeper - optional Stape power-up to extend cookie lifetime. Only available if you use Stape's sGTM hosting, configured Cookie Keeper, and enabled Stape User ID.

2.2. Data Layer section - options that enable Data Layer events and allow you to enrich the data with user and product details.

2.3 Webhooks section - allows you to set up sending webhooks to a selected URL for events like refunds or purchases.

• Check Send webhooks to server GTM container.

• Provide your server container URL and /path for webhooks (e.g., https://gtm.example.com/data).

• Choose which events to send (purchase/refund).
• Click Save.

Learn more about webhooks:

• What are webhooks, webhook servers, and how to use
• Debug incoming webhooks in Google Tag Manager server preview