Real-time
Two-way sync
Changes in Attio or Sage 300 instantly reflect in both systems. No stale data, no manual imports.
CRM ⇄ ERP
Attio to Sage 300 integration — real-time, two-way sync
Keep Attio and Sage 300 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 Attio and Sage 300
Close the gap between front office and back office: Attio and Sage 300 share customers and status in real time, in both directions.
Attio holds the customer relationship; Sage 300 runs the operations and records behind the business. The two overlap wherever the same organizations and transactions matter to both, and when that overlap is bridged by re-keying or overnight batch, each side spends the day working from stale data.
Stacksync syncs Deals, Workspaces, Custom objects, People in Attio with GL Accounts, Journal Batches, Order Entry Orders, Purchase Orders in Sage 300 field by field, in real time, and in both directions. You decide which system owns which fields; Stacksync keeps every copy consistent and resolves conflicts by rules you set.
Common use cases
- Run a two-way dual-run when migrating to Attio from another CRM.
- Sync companies, people, and deals with Postgres so ops teams enrich and update CRM records with SQL.
- Sync AR customers, invoices, and balances into a CRM for multi-currency account visibility.
- Write web and EDI orders into Order Entry and return order status to the source channel.
Where Sage 300 is the finance system of record: money status on the account
Invoice and payment state from Sage 300 shows on the account in Attio, so reps see balances before promising the next order.
One customer master
Where both systems keep customer or organization records, corrections in either propagate to the other, ending dual maintenance.
Where Sage 300 manages people and org data: keep Attio aligned
Owners, territories, and org structure informed by Sage 300 stay current in Attio.
What you can sync between Attio and Sage 300
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.
| Attio objects | Sage 300 objects | |
|---|---|---|
| Workspaces Synced with incremental and full sync per the Stacksync docs. | AR Invoices and Receipts Billing and payment records replicated for cash and revenue reporting. | |
| Custom objects Workspace-defined objects that behave like standard ones in the API. | AR Customers Receivables customer master synced to CRMs and billing tools. | |
| People Standard person object; synced with marketing tools and warehouse person tables. | AP Vendors Payables vendor master synced with procurement and payment systems. | |
| Companies Standard company object; matched to billing and product accounts in two-way syncs. | GL Accounts Chart of accounts read for transaction mapping across integrations. | |
| Users Synced with incremental and full sync per the Stacksync docs. | Journal Batches GL entries staged in batches that must be posted; a common write target for external systems. | |
| Deals Pipeline records; read out for revenue reporting and written to from automation. | Order Entry Orders Sales orders written from e-commerce or EDI feeds. |
What ships with Attio ⇄ Sage 300
Connect Attio and Sage 300 for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Attio–Sage 300 connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Attio or Sage 300 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 Attio or Sage 300 record.
Observability
Monitoring
Track your Attio ⇄ Sage 300 sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Attio and Sage 300.
How the Attio and Sage 300 connectors work
Attio
- Integration surface
- REST API
- Authentication
- Guided in-app connection ("Attio CRM" connection created in a few clicks, "without any coding required"); the docs do not name the underlying auth mechanism (OAuth vs API key)
- Change detection
- Webhooks on record and list-entry events, with polling as a fallback
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to the platform's published API rate limits.
Sage 300
- Integration surface
- Sage 300 Web API (REST) on newer releases; .NET/COM SDK and direct SQL Server access on-prem
- Authentication
- Sage 300 user credentials (Basic auth on the Web API); database credentials for direct SQL reads
- Change detection
- Scheduled polling; batch-oriented modules with no webhook surface
- Capabilities
- read · write
How it works
How to connect Attio to Sage 300 — 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 Attio and Sage 300 with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Attio
connected
Sage 300
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Attio and Sage 300 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 · Attio ⇄ Sage 300Customers 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.
Attio Sage 300Company company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Attio and Sage 300 integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Attio and Sage 300: authenticate both systems, choose the objects to sync (such as Attio's Workspaces and Custom objects), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Common patterns for Attio and Sage 300: Where Sage 300 is the finance system of record: money status on the account; One customer master; Where Sage 300 manages people and org data: keep Attio aligned. Invoice and payment state from Sage 300 shows on the account in Attio, so reps see balances before promising the next order.
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Attio: REST API. Authentication: Guided in-app connection ("Attio CRM" connection created in a few clicks, "without any coding required"); the docs do not name the underlying auth mechanism (OAuth vs API key). Sage 300: Sage 300 Web API (REST) on newer releases; .NET/COM SDK and direct SQL Server access on-prem. Authentication: Sage 300 user credentials (Basic auth on the Web API); database credentials for direct SQL reads. Stacksync manages authentication, retries, and rate limits on both sides.
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Attio: Records are distinct from list entries; the same company can appear in multiple lists with list-specific attribute values, which a faithful sync replicates separately. Sage 300: Multi-currency and multi-company operation are core to the data model, and integrations must carry currency and company context on every transaction. Stacksync's field mapping accounts for these differences between Attio and Sage 300 without custom code.
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Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Attio and Sage 300 records are not retained after a sync operation.
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Stacksync pricing is usage-based and starts at $1,000/month, including the managed Attio and Sage 300 connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Attio–Sage 300 integration in-house.
SECURITY
Security teams love 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
Every pair below is a real-time, two-way sync. Search all 386 integrations available for Attio and Sage 300.
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Attio ⇄ SAP -
Attio ⇄ Snapfulfil -
Attio ⇄ Syspro -
Sage 300 ⇄ Affinity -
Sage 300 ⇄ 6sense -
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Sage 300 ⇄ Clearbit
No integrations match .
