Most ecommerce teams still start their week the same way: four browser tabs open, Shopify admin in one, Amazon Seller Central in another, Meta Ads Manager and GA4 rounding out the set. Someone copies numbers into a spreadsheet, squints at last week's totals, and calls it a report. That's not analytics. That's data entry with extra steps. An ecommerce analytics setup that emails weekly performance reports directly to your inbox skips that whole routine, and it's worth understanding why the manual version breaks down before looking at what a good automated one needs to include.