The reference desk for online sellers: standards tables, size charts, fee math and launch checklists.https://ecomalmanac.com/https://ecomalmanac.com/checklists/store-launch-checklist-40-points/https://ecomalmanac.com/checklists/store-launch-checklist-40-points/A working pre-launch checklist for a new online store: storefront, legal pages, payments, shipping, SEO basics, analytics and the tests to run before you announce anything.Thu, 16 Jul 2026 00:00:00 GMThttps://ecomalmanac.com/calculators/shopify-fees-calculator-how-the-math-works/https://ecomalmanac.com/calculators/shopify-fees-calculator-how-the-math-works/What a store pays per order on each Shopify plan: subscription rates, processing formulas and an interactive calculator you can run with your own numbers.Tue, 14 Jul 2026 00:00:00 GMThttps://ecomalmanac.com/sizes/product-image-sizes-for-shopify/https://ecomalmanac.com/sizes/product-image-sizes-for-shopify/The official Shopify limits for product photos, video and 3D models in one table: maximum pixels, file sizes and formats, straight from the Shopify Help Center.Sun, 12 Jul 2026 00:00:00 GMThttps://ecomalmanac.com/sizes/social-media-image-sizes-for-stores/https://ecomalmanac.com/sizes/social-media-image-sizes-for-stores/The image dimensions a store actually posts in one table: feed posts, Reels, Stories, pins and link previews, checked against each platform's official documentation.Fri, 10 Jul 2026 00:00:00 GMThttps://ecomalmanac.com/codes/currency-codes-iso-4217-reference/https://ecomalmanac.com/codes/currency-codes-iso-4217-reference/Every active ISO 4217 currency in one table: alphabetic code, numeric code and currency name, for checkout settings, product feeds and payment APIs.Wed, 08 Jul 2026 00:00:00 GMT