Build Multi-tenant Customer Messaging the Right Way | Branding, User Preferences, Routing

Building a multi-tenant customer messaging system involves creating a notification infrastructure that respects each customer's branding, preferences, and organizational structure, ensuring notifications are sent with the right context. The guide emphasizes the importance of using a tenant context to prevent issues like branding mismatches and preference leaks, suggesting that organizations use Courier Tenants to set defaults such as branding and metadata at a tenant level. It stresses that tenant hierarchy should mirror real organizational structures, allowing shared defaults at the company level and specific overrides at departmental or team levels. The guide also highlights the need for tenant-specific inboxes to avoid blending notifications from different organizational contexts and recommends consistent use of tenant context to maintain clarity and consistency across notifications. Common mistakes include not sending with tenant context, treating preferences globally instead of tenant-specific, and inconsistent branding. The document suggests a phased approach to implementing this system, starting with understanding the tenant model and gradually integrating tenant-aware sends and preferences to streamline notifications across multi-tenant platforms.