SendSync is the communication control plane for SaaS apps.
Send product-triggered messages across email, SMS, push, and WhatsApp using one API, tenant-aware templates, provider routing, delivery logs, and failover.
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Replace provider sprawl with one managed workflow layer
SendSync is designed around the jobs SaaS teams actually need done: stop notification logic from leaking into every service, prove delivery, and keep providers optional.
Stop hardcoding product notifications
Trigger a named workflow from product code and keep template rules, delivery policy, retry behavior, and provider details in SendSync.
Manage tenant-specific communication rules
Tenant branding, tenant provider credentials, tenant-specific templates, and tenant routing rules stay scoped to each SaaS customer.
Use your existing providers
Bring SendGrid, Twilio, Resend, SES, Mailgun, or another provider; SendSync routes and fails over without making product services vendor-aware.
Know what happened after send
Delivery logs, provider responses, bounce context, retries, and correlation IDs make customer support and incident debug faster.
Keep templates and branding centralized
Reusable tenant-branded templates and approval-safe content blocks replace scattered HTML, SMS copy, and one-off service templates.
Prepare for agent-assisted operations
Failed-message queues, approvals, drafted follow-ups, escalation rules, and audit trails create a safe inbox for human and AI actions.
Stop hardcoding notification logic. Give every product event a managed communication workflow.
SendSync is a provider-agnostic communication control plane, not a direct provider replacement. It sits above the tools you already use and gives SaaS teams one place to manage templates, routing, tenant controls, logs, retries, and support workflows.
The goal is not to replace SendGrid, Twilio, Resend, SES, Mailgun, or your current delivery stack. The goal is to stop every product team from rebuilding the same communication control logic around them.
The SaaS communication mess
- Notification logic scattered across services and background jobs
- Provider-specific SDKs leaking into product code
- Hardcoded templates, branding, and copy changes that require deploys
- Poor observability when customers say they never received a message
- No clean way to retry, route, or fail over after a provider incident
- Tenant-specific communication rules hidden in conditionals and runbooks
One managed layer for tenant-aware communication operations.
SendSync centralizes the controls that usually end up duplicated across product services, support scripts, and provider dashboards.
Use your existing providers
Keep SendGrid, Twilio, Resend, SES, Mailgun, Postmark, or the vendor your customers already trust. SendSync manages the workflow above them.
Tenant controls belong outside product code
Tenant branding, tenant provider credentials, tenant-specific templates, and tenant routing rules are configured in one place instead of hardcoded per service.
Routing and failover become policy
Channel routing, retry windows, provider health, fallback routes, and rate-limit handling can change without rewriting every caller.
Support gets delivery evidence
Searchable delivery logs, provider responses, retry history, and correlation IDs give operators a real debug trail.
From product event to support debug trail.
Product teams emit intent once. SendSync resolves the tenant workflow, renders the approved template, routes to the right provider, records delivery evidence, and gives support a retry or failover path.
Product Event -> SendSync Workflow -> Template Render -> Provider Route -> Delivery Log -> Retry/Failover -> Support Debug Communication operations for humans, apps, and AI agents.
Agent-assisted communication operations are the future-facing wedge: AI can help draft, triage, and escalate, while SendSync keeps approvals, auditability, and tenant policy in the loop.
Agent inbox concepts
- Failed-message review queue for messages that need human attention
- Approval queue for sensitive outbound messages before they leave the system
- Drafted follow-ups that support, success, or AI agents can review
- Escalation rules that route incidents to the right owner
- Audit trail for human and AI actions across every communication workflow
One product event. A managed communication workflow.
Your product emits intent; SendSync handles tenant policy, template rendering, provider routing, delivery state, retries, and support evidence behind the scenes.
Product Event -> SendSync Workflow -> Template Render -> Provider Route -> Delivery Log -> Retry/Failover -> Support Debug
await fetch('https://api.sendsync.io/api/v1/message/send', { method: 'POST', headers: { 'Authorization': 'Bearer YOUR_API_KEY', 'X-Client-Id': 'client_acme', 'Content-Type': 'application/json' }, body: JSON.stringify({ eventType: 'user.welcome', channel: 'email', templateCode: 'welcome-v2', subject: 'Welcome to Acme Inc', recipient: '[email protected]', templateData: { firstName: 'Kevin', company: 'Acme Inc' } }) });