> ## Knowledge Base Index > Fetch the complete knowledge base index at: https://help.omegatheme.com/sitemap.xml > Use this file to discover available pages before exploring further. > Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash). # 🎯 Advertiser Checklist # 1. Verify sending domains Domain verification is how Meta confirms you own the store firing events to your pixel. Without it, Meta won't trust the data and certain conversion optimizations stay locked. 📝**Preparation**: * **Shopify side**: You need to have access to the header section of your Shopify theme, or have contact with people that do. * **Facebook side**: Your account needs to be assigned with the Admin permission to be able to verify a domain 1. In **Meta Business Settings → Brand safety → Domains**, click **Add** and enter your store domain (no `https://`, no `www`). 2. Choose **Meta-tag verification** and copy the snippet. 3. In Shopify, edit `theme.liquid` and paste the snippet **right after the opening `` tag**. Save. 4. Back in Meta, click **Verify domain**. The badge switches to **Verified** within a few seconds. ### ![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/image_g4jljh.png) ![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/image_hz99l4.png) ### Paste the verification tag to the head section of your theme ![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/image_xzau4r.png) ![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/image_i2x45g.png) ### Confirm verification Back to your BM, click verify to confirm ![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/image_1gm6kc6.png) # 2. Turn on Automatic Advanced Matching Advanced Matching sends hashed customer info — email, phone, name, IP — from the browser pixel directly to Meta. More identifiers means better matching to real Facebook users, which boosts EMQ and ad optimization. 1. Open **Meta Events Manager → your pixel → Settings**. 2. Scroll to **Customer Information Parameters → Automatic Advanced Matching**. 3. Toggle it **ON**. 4. Tick the parameters that actually appear on your store (email + phone are the highest-impact). 5. Save. ![](https://storage.crisp.chat/users/helpdesk/website/-/8/3/8/3/8383e5404a31c000/image_17ynkt0.png)