# Blog

- [Meta ad account restricted or disabled: what to do](https://www.performetic.com/en/blog/meta-ad-account-restricted-what-to-do): What to do when your Meta ad account is restricted or disabled: find the cause in Account Quality, request a review correctly and prevent it from happening again.
- [How to set a free shipping threshold](https://www.performetic.com/en/blog/how-to-set-free-shipping-threshold): Set your free shipping threshold with order value data and margin math, not gut feel. A break even formula, worked example table and testing approach.
- [How to calculate ecommerce profit margin](https://www.performetic.com/en/blog/ecommerce-profit-margin-unit-economics): Go from gross margin to contribution margin by layering in product cost, shipping, payment fees, returns and ad spend, with a worked example of real profit per order.
- [How to keep SEO traffic during a site migration](https://www.performetic.com/en/blog/website-migration-seo-checklist): Moving to Shopify, a new platform or a new domain? Build a URL inventory, a 301 redirect map, a launch day checklist and a Search Console monitoring plan.
- [CAC vs LTV vs ROAS: which should ecommerce track?](https://www.performetic.com/en/blog/cac-vs-ltv-vs-roas-ecommerce): What CAC, LTV and ROAS measure, their formulas, the LTV:CAC ratio and which metric to use for which decision, with a worked example.
- [How do customer reviews affect ecommerce sales?](https://www.performetic.com/en/blog/customer-reviews-social-proof-guide): Collecting reviews, displaying them well, using UGC and following Google's review structured data rules: a practical guide to social proof in ecommerce.
- [Black Friday ad plan for ecommerce brands](https://www.performetic.com/en/blog/black-friday-ad-plan-ecommerce): A pre peak, peak and post peak timeline for Black Friday and other sale events, with budget pacing, creative and offer prep, and a stock and site readiness checklist.
- [International SEO and hreflang for ecommerce](https://www.performetic.com/en/blog/international-seo-hreflang-guide): Selling abroad? Compare URL structures, learn the hreflang rules Google actually enforces, set up x-default and avoid the mistakes that break multilingual stores.
- [Google Merchant Center setup and fixing disapprovals](https://www.performetic.com/en/blog/google-merchant-center-setup-disapprovals): How to set up Google Merchant Center step by step, verify your website, and fix the most common product disapprovals, from price mismatch to misrepresentation.
- [How to set up GA4 ecommerce tracking](https://www.performetic.com/en/blog/ga4-ecommerce-tracking-setup): Recommended GA4 ecommerce events, a Google Tag Manager dataLayer example, DebugView validation and consent mode settings: a step by step setup guide.
- [Brand awareness vs performance ads: budget split](https://www.performetic.com/en/blog/brand-awareness-vs-performance-marketing-budget): How to balance budget between brand awareness and performance advertising, how to measure upper funnel impact with branded search and lift tests, and a starting split framework.
- [How to use Google Search Console for ecommerce](https://www.performetic.com/en/blog/google-search-console-for-ecommerce): Set up Search Console for an online store, know which reports to check every week, decode page indexing statuses and keep your product rich results healthy.