Can you migrate from Shopify Plus / BigCommerce / Magento 1 to Magento 2.4.9?

Yes — the three Bay-Area migration paths we run weekly, each with SF-specific gotchas. Shopify Plus → Magento 2.4.9: 6–10 weeks, Data Migration Tool for products + orders + customers, custom scripts for metafields + Shopify apps. Reasons SoMa fintech / Palo Alto enterprise leave Shopify Plus: (a) 0.15% Shopify Plus revenue tax bites at scale; (b) B2B portals on Shopify B2B aren’t flexible enough for SaaS-adjacent multi-tier pricing; (c) SOC 2 Type II is harder on Shopify than self-hosted Magento. BigCommerce → Magento: 8–12 weeks, custom ETL for product attributes (BigCommerce has fewer EAV options than Magento), 1:1 URL mapping for SEO preservation. Reason: BigCommerce’s pricing tiers cap orders/month, scaling past $5M GMV gets expensive. Magento 1 → Magento 2.4.9: 10–16 weeks, official Data Migration Tool + extension audit (M1 extensions don’t port), Hyvä theme rebuild. Reason: M1 EOL since June 2020, PCI-DSS Level 1 non-compliant for Stripe / Square / Visa Direct. SF Bay-specific: we always preserve 301-redirects for old Shopify CDN URLs and schema.org Product markup for Google Shopping continuity.