OUR TAKE
A dedicated inbound API path with a distinct outbound tier
Sendblue may fit an incoming assistant or support channel where customers make first contact. Keep the intended messaging direction at the front of the switching decision.
Preserve the direction of the workflow
The published $100 AI Agent line is inbound-first and includes webhooks and callbacks. If your previous system began new conversations, moving to that plan would change the workflow rather than simply replace its endpoint.
For outbound requirements, obtain the Enterprise scope and quote before planning cutover. The same provider can offer different production permissions at different tiers.
Rebuild the event boundary deliberately
Match the original conversation and message identifiers to the new provider’s documented records. A payload with similar fields still needs its own validation, retry handling and contact mapping.
Sendblue’s sandbox can help explore send calls, but its published event exclusions leave part of that rehearsal for a production-scoped test.
Choose a cutover owner
Have one place that decides which provider owns a new send and which team owns a reply. Avoid running two unsynchronized follow-up systems against the same customer.
Request number and history arrangements explicitly. The provider’s API familiarity does not establish that those assets transfer automatically.
The decision in one sentence
Evaluate it when inbound-first production is the actual destination.
Read the primary sources
These are the provider’s own descriptions. Prices and product claims are dated snapshots, and performance claims are not our test results.