Real-time
Two-way sync
Changes in Bill or Syspro instantly reflect in both systems. No stale data, no manual imports.
Accounting and finance ⇄ ERP
Bill to Syspro integration — real-time, two-way sync
Keep Bill and Syspro 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
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Migrated from MuleSoft
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Migrated from Celigo
Migrated from Heroku Connect
Migrated from Matillion
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Migrated from Fivetran
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Migrated from Celigo
Why teams connect Bill and Syspro
Keep Bill and Syspro agreeing on customers, invoices, and balances, whether they split the finance workload or one is replacing the other.
A dedicated finance tool and an ERP end up side by side for practical reasons: a subsidiary runs lighter software than headquarters, billing runs in a specialist system while the enterprise system holds the wider view, or the company is mid-migration and both are live. Whatever the split, the two systems describe overlapping customers and transactions, and that overlap drifts without a live connection.
Stacksync syncs Chart of Accounts, Bank Accounts, Vendor Credits and Credit Memos, Bills in Bill with Inventory items, Sales orders, Purchase orders, Jobs (work orders) in Syspro in real time and in both directions. You decide which system wins on which field, and every change made in one is reflected in the other within seconds instead of at the next batch run.
Common use cases
- 01 Write Vendors created during ERP onboarding into BILL so new payees are ready to pay without manual re-entry.
- 02 Read Payments and payment status into a reconciliation database once bills are marked paid in BILL.
- 03 Write sales orders from e-commerce platforms or CRMs into SYSPRO without manual re-entry
- 04 Keep inventory balances and item masters aligned between SYSPRO and a WMS or storefront
Common sync patterns
Subsidiary to headquarters
Where Bill serves a business unit and Syspro is the group system, transactions and customer records roll up continuously, so consolidation starts from live data.
Where Bill handles billing: invoices land in Syspro
Invoices and payment activity from the billing side post through to the enterprise system automatically.
Migration without a hard cutover
When one system is replacing the other, run both in parallel with records matching until the switch is complete.
What you can sync between Bill and Syspro
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.
| Bill objects | Syspro objects | How this pairing syncs | |
|---|---|---|---|
| Customers AR customer master records; mapped to customer/account records in a CRM or ERP so finance and sales share one view. | Customers AR customer master records matched against CRM accounts. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. Custom fields on either side are included in the mapping. | |
| Bank Accounts Funding and deposit accounts; read to reconcile payments and posted transactions against the ledger. | Sales orders Orders written in from storefronts and CRMs, with status read back out. | Bank Accounts is specific to Bill and Sales orders to Syspro — each maps to any object or custom field on the other side. | |
| Vendor Credits and Credit Memos AP and AR adjustments applied against bills and invoices; synced so balances stay accurate on both sides. | Purchase orders Procurement documents synced with supplier portals and receiving. | Vendor Credits and Credit Memos is specific to Bill and Purchase orders to Syspro — each maps to any object or custom field on the other side. | |
| Bills Accounts-payable amounts owed to vendors, with bill line items; read and created via /v3/bills and pulled incrementally by filtering on createdTime/updatedTime. | Jobs (work orders) Manufacturing jobs and WIP tracked for production reporting. | Bills is specific to Bill and Jobs (work orders) to Syspro — each maps to any object or custom field on the other side. | |
| Vendors Payee master records; synced two-way with vendor/supplier tables in an ERP or accounting system so new payees don't have to be re-keyed. | Bills of materials Product structures referenced when syncing manufacturing data. | Vendors is specific to Bill and Bills of materials to Syspro — each maps to any object or custom field on the other side. | |
| Invoices Accounts-receivable invoices sent to customers; created and read via /v3/invoices to keep billing status aligned with the ERP or CRM. | AR invoices Billing documents surfaced to CRMs and finance reporting. | Invoices is specific to Bill and AR invoices to Syspro — each maps to any object or custom field on the other side. |
How changes propagate between Bill and Syspro
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.
Bill Syspro Sub-second propagation
DetectionBill notifies Stacksync of record changes through webhook events. Webhook event subscriptions (POST /v3/subscriptions) for bills, vendors, payments, invoices, and bank accounts, with polling on.
DeliveryEach detected change is written to Syspro through its API, with automatic retries and rate-limit backoff.
Syspro Bill Interval-based propagation
DetectionStacksync polls Syspro for changes on an incremental schedule, reading only records changed since the previous pass. Polling.
DeliveryEach detected change is written to Bill through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Bill: 20,000 requests per developer key per hour; login (POST /v3/login) capped at 200/hour; maximum 3 concurrent requests per developer key per organization. Spend & Expense API is a separate token at 60 calls/token/minute.
- Syspro: Throughput depends on the customer's server sizing; many deployments are on-premise.
What ships with Bill ⇄ Syspro
Connect Bill and Syspro for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Bill–Syspro connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Bill or Syspro 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 Bill or Syspro record.
Observability
Monitoring
Track your Bill ⇄ Syspro sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Bill and Syspro.
How the Bill and Syspro connectors work
Bill
- Integration surface
- REST/JSON (BILL v3 Connect API)
- Authentication
- Session-based: POST /v3/login with username, password, organizationId, and a developer key (devKey) returns a sessionId that is passed with the devKey as headers on every subsequent call; OAuth is available for partner/embedded apps
- Change detection
- Webhook event subscriptions (POST /v3/subscriptions) for bills, vendors, payments, invoices, and bank accounts, with polling on createdTime/updatedTime list filters as the fallback
- Capabilities
- read · write · webhooks
- Rate limits
- 20,000 requests per developer key per hour; login (POST /v3/login) capped at 200/hour; maximum 3 concurrent requests per developer key per organization. Spend & Expense API is a separate token at 60 calls/token/minute.
Syspro
- Integration surface
- e.net Solutions business objects, exposed over REST and WCF interfaces in SYSPRO 8
- Authentication
- SYSPRO operator credentials exchanged for a session token
- Change detection
- Polling; the ERP does not expose a change feed to external consumers
- Capabilities
- read · write
- Rate limits
- Throughput depends on the customer's server sizing; many deployments are on-premise
How it works
How to connect Bill to Syspro — 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 Bill and Syspro with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Bill
connected
Syspro
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Bill and Syspro 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 · Bill ⇄ SysproCustomers 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.
Bill SysproCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Bill and Syspro integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Bill and Syspro: authenticate both systems, choose the objects to sync (such as Bill's Customers and Bank Accounts), map fields visually, and changes propagate both ways in milliseconds — no code required.
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On the Bill side: Chart of Accounts, Bank Accounts, Vendor Credits and Credit Memos, Bills, plus custom fields where Bill exposes them. On the Syspro side: Inventory items, Sales orders, Purchase orders, Jobs (work orders). 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 Bill and Syspro: Subsidiary to headquarters; Where Bill handles billing: invoices land in Syspro; Migration without a hard cutover. Where Bill serves a business unit and Syspro is the group system, transactions and customer records roll up continuously, so consolidation starts from live data.
-
Bill: REST/JSON (BILL v3 Connect API). Authentication: Session-based: POST /v3/login with username, password, organizationId, and a developer key (devKey) returns a sessionId that is passed with the devKey as headers on every subsequent call; OAuth is available for partner/embedded apps. Syspro: E.net Solutions business objects, exposed over REST and WCF interfaces in SYSPRO 8. Authentication: SYSPRO operator credentials exchanged for a session token. Stacksync manages authentication, retries, and rate limits on both sides.
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Bill: BILL exposes separate AP and AR object sets plus a distinct Spend & Expense API that uses its own token and a lower 60-calls-per-minute limit. Syspro: Business objects exchange XML documents for both input and output, which the integration layer maps to flat records. Stacksync's field mapping accounts for these differences between Bill and Syspro without custom code.
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:
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