Start with the job, not the channel
A channel is a delivery surface. The program should start with the customer job: activate, recover, expand, renew, or alert. Then pick the least intrusive channel that can do the work.
Email is rarely the only customer message. Growth teams often coordinate email with in-app prompts, push, SMS, support notes, and sales tasks. Orchestration decides which channel should speak, when, and under what suppression rules.
A channel is a delivery surface. The program should start with the customer job: activate, recover, expand, renew, or alert. Then pick the least intrusive channel that can do the work.
Email is durable and searchable. In-app is contextual. Push is timely but interruptive. SMS is sensitive and should be reserved for high-importance moments with proper consent.
| channel | best fit | avoid |
|---|---|---|
| Receipts, summaries, education, lifecycle prompts. | Urgent in-session nudges. | |
| In-app | Next action while the user is active. | Users who are not logged in. |
| Push | Time-sensitive product state. | Low-value reminders. |
| SMS | Critical account or billing moments with consent. | Routine marketing. |
If an in-app prompt already drove the action, the email should usually exit. If a user complained about email, that does not automatically permit SMS.
Sales, support, and success tasks should be triggered by clear account states, not every click. Human handoff should include the message history and the reason for escalation.
Growth work lives or dies on targeting and measurement. What matters is whether behavioral triggers can be built without engineering time, whether the event stream supports attribution past the open, and whether deliverability holds when broadcast volume shares a reputation with product email.
Applied to multi-channel orchestration, that means weighing scheduling, event stream, deliverability, and operating track record ahead of the rest, against behavior-triggered journeys, broadcasts, and winback campaigns measured on revenue.