Real-time
Two-way sync
Changes in Ramp or Resend instantly reflect in both systems. No stale data, no manual imports.
Accounting and finance ⇄ Business productivity
Ramp to Resend integration — real-time, two-way sync
Keep Ramp and Resend in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
- SOC 2 and 6 other compliance frameworks
- POC with real engineers in minutes
Adopted by fast-scaling companies moving mission-critical data in real time
Case study
Migrated from MuleSoft
Case study
Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
Case study
Migrated from Fivetran
Case study
Migrated from Celigo
Why teams connect Ramp and Resend
Connect the financial records in Ramp with the work happening in Resend, so both stay current without exports or copy-paste.
Ramp holds the financial truth: who the customers are, what they were billed, what they paid. Resend is where part of the day-to-day work happens, and that work often involves the same customers and transactions. Without a live connection, the two drift apart, and people end up answering questions from stale copies.
Stacksync keeps Funds (Spend Controls), General Ledger Accounts, Transactions, Cards in Ramp and API keys, Emails, Contacts, Audiences in Resend in sync, bi-directionally and in real time. Whatever records Resend keeps and whatever events it produces, the overlap with Ramp is mapped field by field, and a change on either side shows up on the other within seconds.
There is no middleware to build, no API rate limits to babysit, and no nightly job that leaves the morning running on yesterday's data.
Common use cases
- 01 Two-way sync Transactions and their accounting codings with a Postgres warehouse so finance analyzes spend in SQL and pushes GL categories and memos back to Ramp.
- 02 Mirror Bills and their approval and payment state into an AP or ERP system, marking each one ready-to-sync then synced to keep both ledgers reconciled.
- 03 Trigger transactional sends when a row changes in an operational database, such as an order status update.
- 04 Keep suppression and unsubscribe state synced between Resend and other marketing tools to stay compliant.
Common sync patterns
Where Resend collects payments or triggers charges: events land in Ramp
Payment and charge activity flows into Ramp as it happens, so the books reflect reality without manual reconciliation.
Where Resend tracks people or companies: one identity
A customer's details updated in either system update the other, so finance and the rest of the business stop maintaining two versions of the same customer.
Where Resend handles customer conversations: billing context in view
Front-line teams see invoice and payment status from Ramp next to the customer they are helping, without logging into the finance system.
What you can sync between Ramp and Resend
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.
| Ramp objects | Resend objects | How this pairing syncs | |
|---|---|---|---|
| General Ledger Accounts Chart-of-accounts entries uploaded from the ERP; accounting codings are posted back against transactions and bills. | API keys Scoped credentials managed per environment for send and read access. | General Ledger Accounts is specific to Ramp and API keys to Resend — each maps to any object or custom field on the other side. | |
| Transactions Card purchase records with merchant, amount, and state; read for spend/GL sync and written back via accounting codings and sync status. | Emails Sent messages retrievable by ID with current delivery status. | Transactions is specific to Ramp and Emails to Resend — each maps to any object or custom field on the other side. | |
| Cards Physical and virtual card records; created and managed through the API to provision or suspend cardholder spend. | Contacts Recipient records with email, name, and subscription state, synced from CRMs or databases. | Cards is specific to Ramp and Contacts to Resend — each maps to any object or custom field on the other side. | |
| Users Employee and cardholder records; invited, updated, and deactivated, commonly synced from an HRIS or identity provider. | Audiences Named contact lists that broadcasts target; typically mirrored from CRM segments. | Users is specific to Ramp and Audiences to Resend — each maps to any object or custom field on the other side. | |
| Departments Org groupings for cost-center and GL allocation; pushed from an ERP/HRIS and referenced by cards and transactions. | Broadcasts One-to-many campaign sends addressed to an audience. | Departments is specific to Ramp and Broadcasts to Resend — each maps to any object or custom field on the other side. | |
| Reimbursements Out-of-pocket expense claims; read for reporting and marked ready-to-sync then synced to the ERP. | Domains Verified sending domains with DNS and DKIM status. | Reimbursements is specific to Ramp and Domains to Resend — each maps to any object or custom field on the other side. |
How changes propagate between Ramp and Resend
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.
Ramp Resend Sub-second propagation
DetectionRamp notifies Stacksync of record changes through webhook events. Signed webhooks (HMAC-SHA256 X-Ramp-Signature) for bill, transaction, reimbursement, vendor, and user events.
DeliveryEach detected change is written to Resend through its API, with automatic retries and rate-limit backoff.
Resend Ramp Sub-second propagation
DetectionResend notifies Stacksync of record changes through webhook events. Webhooks for email lifecycle events.
DeliveryEach detected change is written to Ramp through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Ramp: 200 requests per 10-second rolling window per source IP; exceeding it returns 429 Too Many Requests, and requests running over 60 seconds return 504. Results use keyset pagination (follow the page.next URL / start cursor); higher limits can be requested from support.
What ships with Ramp ⇄ Resend
Connect Ramp and Resend for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Ramp–Resend connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Ramp or Resend data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
At scale
Event queues
Handle millions of events per minute without losing a single Ramp or Resend record.
Observability
Monitoring
Track your Ramp ⇄ Resend sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Ramp and Resend.
How the Ramp and Resend connectors work
Ramp
- Integration surface
- REST API (Developer API v1)
- Authentication
- OAuth 2.0: exchange client_id/client_secret (HTTP Basic) at api.ramp.com/developer/v1/token for scoped bearer tokens; client_credentials grant for server-to-server and authorization_code for user-delegated access; scopes follow resource:permission (e.g. transactions:read, bills:write, accounting:write).
- Change detection
- Signed webhooks (HMAC-SHA256 X-Ramp-Signature) for bill, transaction, reimbursement, vendor, and user events; otherwise poll incrementally (synced_after on transactions, from_created_at on bills) with keyset pagination, or read the audit-logs/events feed.
- Capabilities
- read · write · webhooks
- Rate limits
- 200 requests per 10-second rolling window per source IP; exceeding it returns 429 Too Many Requests, and requests running over 60 seconds return 504. Results use keyset pagination (follow the page.next URL / start cursor); higher limits can be requested from support.
Resend
- Integration surface
- REST API
- Authentication
- API key (Bearer token)
- Change detection
- Webhooks for email lifecycle events; polling for contact and audience state
- Capabilities
- read · write · webhooks
How it works
How to connect Ramp to Resend — three steps, no code
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.
- 01
Connect your apps
Authenticate Ramp and Resend with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Ramp
connected
Resend
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Ramp and Resend 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.
objects · Ramp ⇄ ResendCustomers 12,480Sales Orders 8,213Invoices 5,902Items 1,344 - 03
Map fields
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Ramp ResendCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Ramp and Resend integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Ramp and Resend: authenticate both systems, choose the objects to sync (such as Ramp's General Ledger Accounts and Transactions), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Yes — Stacksync ships production-grade connectors for both Ramp and Resend. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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Change detection on Ramp: Signed webhooks (HMAC-SHA256 X-Ramp-Signature) for bill, transaction, reimbursement, vendor, and user events; otherwise poll incrementally (synced_after on transactions, from_created_at on bills) with keyset pagination, or read the audit-logs/events feed. On Resend: Webhooks for email lifecycle events; polling for contact and audience state. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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On the Ramp side: Funds (Spend Controls), General Ledger Accounts, Transactions, Cards, plus custom fields where Ramp exposes them. On the Resend side: API keys, Emails, Contacts, Audiences. Stacksync auto-detects both schemas and converts types between the two systems.
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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.
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Common patterns for Ramp and Resend: Where Resend collects payments or triggers charges: events land in Ramp; Where Resend tracks people or companies: one identity; Where Resend handles customer conversations: billing context in view. Payment and charge activity flows into Ramp as it happens, so the books reflect reality without manual reconciliation.
SECURITY
Security teams trust Stacksync
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.
SOC 2 Type II
ISO 27001
HIPAA BAA
GDPR
CCPA
CSA STAR
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS
SSO & SCIM
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Alerts
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Secure connection options
Securely connects to your systems with:
Related integrations
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