Landscape Design: Tiers, Clients and Test Environments

Keep this: job aid

Landscape and test environment checklist

• Draw the landscape: systems, clients, BTP subaccounts and transport routes, with an owner.
• Changes move one way by transport; nobody configures in quality or production.
• Record logical client roles; keep training and testing in separate clients.
• Unit test customizing in a separate client by copying transport contents in.
• Sandboxes receive but never send; refresh them and wipe experiments.
• Dual track only when overlap justifies retrofit; freeze maintenance to keep retrofit small.
• Pair each BTP stage with the same ERP stage through identically named destinations.
• Plan refreshes with lead times; run the post-copy checklist every time.
• No test cycle without a signed environment checklist.