Two-way sync
Changes in Resend or Success Factors instantly reflect in both systems. No stale data, no manual imports.
Keep Resend and Success Factors in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
Each tool in Resend keeps its own list of who can use it: users, members, or agents, along with the team they sit on and whether they are still active. Success Factors is the authoritative record of the same people as employees, with their department, manager, and employment status. When those two are connected only by manual account admin or a periodic export, the work tools drift: new hires wait days for access, team and manager changes never catch up, and people who have left keep standing accounts.
Stacksync syncs Domains, Email events, API keys, Emails in Resend with Foundation Objects (FODepartment, FOLocation, FOCostCenter), Position, PerEmail and PerPhone, User in Success Factors bi-directionally and in real time. A person added, moved, or offboarded in Success Factors creates or updates the matching user in Resend within seconds, with field-level mapping and conflict resolution in place of spreadsheets and one-off account changes. Where Resend captures details of its own, such as a corrected contact or a login identity, those can flow back to Success Factors in whichever direction you configure.
Because the sync is field-level, each system keeps its own extras; only the shared facts, who a person is, which team they belong to, and whether their access should be on, are held in agreement.
When someone is marked as leaving in Success Factors, the matching account in Resend is deactivated or flagged, so departures do not leave open access behind.
A person's name, title, contact details, or status corrected in either system updates the other, so both sides stop maintaining separate copies of the same person.
Department, team, and reporting-line changes from Success Factors keep the groups, queues, or projects in Resend assigned to the right people.
Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.
| Resend objects | Success Factors objects | How this pairing syncs | |
|---|---|---|---|
| Emails Sent messages retrievable by ID with current delivery status. | EmpCompensation Effective-dated pay and compensation; usually read into a warehouse for reporting, writable for comp updates as new dated slices. | Emails is specific to Resend and EmpCompensation to Success Factors — each maps to any object or custom field on the other side. | |
| Contacts Recipient records with email, name, and subscription state, synced from CRMs or databases. | Foundation Objects (FODepartment, FOLocation, FOCostCenter) Org-structure master data (department, location, cost center, division); mastered elsewhere and written in, or read out to build org charts. | Contacts is specific to Resend and Foundation Objects (FODepartment, FOLocation, FOCostCenter) to Success Factors — each maps to any object or custom field on the other side. | |
| Audiences Named contact lists that broadcasts target; typically mirrored from CRM segments. | Position Position Management records for headcount and requisition planning; synced with an ATS or ERP to keep positions and reqs aligned. | Audiences is specific to Resend and Position to Success Factors — each maps to any object or custom field on the other side. | |
| Broadcasts One-to-many campaign sends addressed to an audience. | PerEmail and PerPhone Contact sub-entities under PerPerson; synced two-way with a directory or comms system to keep worker contact data current. | Broadcasts is specific to Resend and PerEmail and PerPhone to Success Factors — each maps to any object or custom field on the other side. | |
| Domains Verified sending domains with DNS and DKIM status. | User Core identity/User entity behind role-based permissions; a model distinct from Employee Central, synced two-way with a directory or IdP and downstream apps. | Domains is specific to Resend and User to Success Factors — each maps to any object or custom field on the other side. | |
| Email events Delivered, bounced, complained, opened, and clicked events emitted via webhooks and written back to source systems. | PerPerson Person-level container in Employee Central holding biographical data; effective-dated child entities (PerPersonal, PerEmail, PerPhone) hang off it. | Email events is specific to Resend and PerPerson to Success Factors — each maps to any object or custom field on the other side. |
Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.
DetectionResend notifies Stacksync of record changes through webhook events. Webhooks for email lifecycle events.
DeliveryEach detected change is written to Success Factors through its API, with automatic retries and rate-limit backoff.
DetectionSuccess Factors notifies Stacksync of record changes through webhook events. Polling on each entity's lastModifiedDateTime / lastModifiedOn (effective-dated entities require date-range handling).
DeliveryEach detected change is written to Resend through its API, with automatic retries and rate-limit backoff.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Resend–Success Factors connection.
Changes in Resend or Success Factors instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Resend or Success Factors data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Resend or Success Factors record.
Track your Resend ⇄ Success Factors sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Resend and Success Factors.
Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.
Authenticate Resend and Success Factors with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Pick the Resend and Success Factors objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Yes. Stacksync provides a managed, real-time two-way integration between Resend and Success Factors: authenticate both systems, choose the objects to sync (such as Resend's Emails and Contacts), map fields visually, and changes propagate both ways in milliseconds — no code required.
Change detection on Resend: Webhooks for email lifecycle events; polling for contact and audience state. On Success Factors: Polling on each entity's lastModifiedDateTime / lastModifiedOn (effective-dated entities require date-range handling); Intelligent Services can also push a fixed set of standard business events (e.g. Employee Hire) to a REST endpoint. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
On the Resend side: Domains, Email events, API keys, Emails, plus custom fields where Resend exposes them. On the Success Factors side: Foundation Objects (FODepartment, FOLocation, FOCostCenter), Position, PerEmail and PerPhone, User. Stacksync auto-detects both schemas and converts types between the two systems.
Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.
Common patterns for Resend and Success Factors: Offboarding: no standing access after a departure; One employee directory; Org and team structure kept current. When someone is marked as leaving in Success Factors, the matching account in Resend is deactivated or flagged, so departures do not leave open access behind.
Resend: REST API. Authentication: API key (Bearer token). Success Factors: OData V2 and V4 REST APIs (plus legacy SFAPI / Compound Employee SOAP API). Authentication: OAuth 2.0 SAML Bearer Assertion — register an OAuth client for an API key (used as client_id), then exchange a signed SAML assertion for a short-lived access token; legacy HTTP Basic auth is being retired. Stacksync manages authentication, retries, and rate limits on both sides.
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Securely connects to your systems with:
Every pair below is a real-time, two-way sync. Search all 395 integrations available for Resend and Success Factors.