Integrations should make the customer journey more reliable, not create a brittle chain of automations. Start with the systems that genuinely need shared data and define which platform owns each record.
CRM integration
Decide where a lead becomes a contact, opportunity or customer, then map which fields and lifecycle events have to move between systems.
Analytics handoff
Preserve campaign parameters and key conversion identifiers without sending unnecessary personal data to every tool in the stack.
Migration
When changing funnel platforms, inventory pages, forms, domains, automations, payment flows, tracking and customer access before rebuilding.