Fifteen brittle links → six governed ones
grey: retired point-to-point · blue: through the warehouse
Shopify
orders · products
SAP
ledger · stock
GA4
behaviour
WMS
fulfilment
Brevo
email · CRM
Payments
settlements
Warehouse
one source of truth
Every grey line was a scheduled CSV someone owned informally. Six spokes now reconcile in one place — that's what made same-day tie-out (08) possible.