The problem with separate dashboards
A typical multi-store merchant juggles between 3 to 5 different interfaces every day. The Shopify dashboard for one store, the PrestaShop back office for another, WooCommerce for a third. Add GA4, Meta Ads Manager, Google Ads and your tracking spreadsheets.
This fragmentation creates three major problems. First, impossibility to compare: each platform calculates metrics differently (Shopify revenue isn't calculated the same as PrestaShop revenue). Second, wasted time: manually consolidating data in a spreadsheet takes hours every week. Third, no global vision: you don't know your consolidated profit, your global LTV, or which customers buy across multiple stores.
The 3 multi-store use cases
Case 1: the multi-brand merchant. You own multiple e-commerce brands, each on its own store (often Shopify). You need a consolidated dashboard to manage the whole and compare performance brand by brand.
Case 2: the multi-platform merchant. You sell the same catalog on PrestaShop (your legacy store), on Shopify (launched to test) and perhaps on WooCommerce (for a specific market). You need to centralize data in a unified format.
Case 3: the e-commerce agency. You manage stores for multiple clients on different platforms. You need centralized access with per-client views, performance comparisons and automated reports.
What each platform measures differently
Revenue isn't calculated the same way on each platform. Shopify includes or excludes taxes and shipping depending on your settings. PrestaShop distinguishes tax-inclusive and tax-exclusive with different rules depending on the version. WooCommerce depends on the WP configuration and installed extensions.
Order statuses also differ. PrestaShop has specific statuses (awaiting payment, payment accepted, preparation in progress, etc.) that Shopify and WooCommerce don't share. Reconciliation is needed to compare homogeneous data.
Customer data is stored differently. Shopify associates a customer with an account, PrestaShop uses internal IDs, WooCommerce relies on WordPress users. Identifying the same customer across platforms is a technical challenge.
Fullmetrix: a unified multi-store dashboard
Fullmetrix connects to PrestaShop, WooCommerce and Shopify via modules and API integrations. Each store is synced individually, then data is normalized into a unified format.
The dashboard offers two view levels. The per-store view shows KPIs specific to each store: revenue, orders, profit, LTV, cohorts, RFM. The consolidated view aggregates data from all your stores for a global vision of your e-commerce activity.
Metrics are automatically normalized. Revenue is always calculated tax-exclusive after deducting discounts and refunds, regardless of the source platform's settings. Order statuses are mapped to unified statuses. Currencies are converted if needed.
For agencies, each client store is isolated with its own data and access controls. You can switch between clients in one click without juggling interfaces.
Optimizations possible with multi-store view
Optimization 1: identify your most profitable store. Not the biggest in revenue, but the one with the best real net margin after all costs. You might discover your smallest store is proportionally the most profitable.
Optimization 2: compare LTV by platform. Do Shopify customers have better retention than PrestaShop customers? Do WooCommerce cohorts generate more value over time? These insights guide your investment decisions by platform.
Optimization 3: pool your ad audiences. Sync RFM segments from all your stores to Meta and Google Ads. A lookalike audience based on Champions from all your stores is more powerful than one based on a single store because the signal is richer.
Optimization 4: automate consolidated reports. Fullmetrix generates automatic digests by email or Slack with consolidated KPIs from all your stores. You receive one report instead of manually compiling data from each platform.