Real-time
Two-way sync
Changes in Bigcommerce or Bill instantly reflect in both systems. No stale data, no manual imports.
E-commerce ⇄ Accounting and finance
Bigcommerce to Bill integration — real-time, two-way sync
Keep Bigcommerce and Bill 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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Why teams connect Bigcommerce and Bill
Turn every Bigcommerce order into clean revenue: Bill and Bigcommerce keep customers, orders, and payment status aligned in real time, in both directions.
Bigcommerce runs the storefront — the catalog, the orders, and the buyers placing them. Bill records the money behind those orders — invoices, revenue, payments, and the ledger the business closes on. The overlap is every customer, order, and product both sides need to agree on, and when that overlap is bridged by CSV export or an overnight batch, finance reconciles against stale numbers while the store quotes prices or stock the books no longer recognize.
Stacksync syncs Invoices, Customers, Payments, Chart of Accounts in Bill with Customers, Categories, Brands, Inventory in Bigcommerce field by field, in real time, and in both directions. You decide which system owns which fields — an order's totals from Bigcommerce, its paid-or-overdue state from Bill — and Stacksync keeps every copy consistent and resolves conflicts by the rules you set.
The result is one shared record of who bought what and whether it has been paid, so the storefront, support, and the finance team all read from the same current data instead of re-keying it between systems.
Common use cases
- 01 Sync Customers and Invoices from BILL AR into a CRM or ERP so sales and finance see billing and payment status on the account.
- 02 Write Vendors created during ERP onboarding into BILL so new payees are ready to pay without manual re-entry.
- 03 Two-way sync of Products and Variants between BigCommerce and a PIM or ERP so catalog content, SKUs, and pricing stay aligned across systems.
- 04 Write Inventory levels from a WMS or ERP onto BigCommerce Variants and SKUs so storefront availability reflects warehouse on-hand counts.
Common sync patterns
Catalog and pricing stay aligned
Products, SKUs, and prices maintained on one side propagate to the other, so what the store sells and what the ledger books stay in step.
Refunds and credits reconcile
Refunds, cancellations, and credit notes raised in either system update the corresponding record in the other, keeping balances honest on both sides.
Where Bigcommerce originates orders: sales flow into the books
A new or updated order in Bigcommerce creates or updates the matching invoice or revenue record in Bill, so billing and reporting start without re-entry.
What you can sync between Bigcommerce and Bill
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.
| Bigcommerce objects | Bill objects | How this pairing syncs | |
|---|---|---|---|
| Customers V3 customer accounts, customer groups, and addresses; synced two-way with a CRM so storefront and GTM records match. | Customers AR customer master records; mapped to customer/account records in a CRM or ERP so finance and sales share one view. | 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. | |
| Brands Catalog V3 brand records linked to products; kept aligned with a product master or PIM so brand names and pages stay consistent. | 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. | Brands is specific to Bigcommerce and Vendors to Bill — each maps to any object or custom field on the other side. | |
| Inventory Product- or variant-level stock, plus multi-location counts via the V3 Inventory API; written from a WMS to reflect on-hand quantities. | Invoices Accounts-receivable invoices sent to customers; created and read via /v3/invoices to keep billing status aligned with the ERP or CRM. | Inventory is specific to Bigcommerce and Invoices to Bill — each maps to any object or custom field on the other side. | |
| Price Lists V3 price lists and records driving customer-group and B2B pricing; pushed from an ERP so tiered prices stay current. | Payments Outgoing vendor payments and received customer payments; read for reconciliation and created to schedule bill pay. | Price Lists is specific to Bigcommerce and Payments to Bill — each maps to any object or custom field on the other side. | |
| Shipments Order shipments with tracking numbers; created in BigCommerce from a 3PL or fulfillment system as packages ship. | Chart of Accounts GL accounts used to code bills and invoices; typically mastered in the accounting system and written into BILL for consistent coding. | Shipments is specific to Bigcommerce and Chart of Accounts to Bill — each maps to any object or custom field on the other side. | |
| Products Catalog V3 records with custom fields and images; mastered in a PIM or ERP and written to BigCommerce, or read out to a warehouse. | Bank Accounts Funding and deposit accounts; read to reconcile payments and posted transactions against the ledger. | Products is specific to Bigcommerce and Bank Accounts to Bill — each maps to any object or custom field on the other side. |
How changes propagate between Bigcommerce and Bill
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.
Bigcommerce Bill Sub-second propagation
DetectionBigcommerce notifies Stacksync of record changes through webhook events. Webhooks push near-real-time events (store/order/*, store/product/*, store/customer/* and more).
DeliveryEach detected change is written to Bill through its API, with automatic retries and rate-limit backoff.
Bill Bigcommerce 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 Bigcommerce through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Bigcommerce: OAuth quota refreshes every 30 seconds and varies by plan (about 20,000 requests/hour on Standard and Plus, 60,000 on Pro, higher on Enterprise); the X-Rate-Limit-Requests-Left header reports remaining calls.
- 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.
What ships with Bigcommerce ⇄ Bill
Connect Bigcommerce and Bill for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Bigcommerce–Bill connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Bigcommerce or Bill 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 Bigcommerce or Bill record.
Observability
Monitoring
Track your Bigcommerce ⇄ Bill sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Bigcommerce and Bill.
How the Bigcommerce and Bill connectors work
Bigcommerce
- Integration surface
- REST Management API (V2 and V3), plus GraphQL Storefront and Admin APIs
- Authentication
- OAuth API account credentials — a store-generated client ID and permanent access token sent in the X-Auth-Token header, limited to the OAuth scopes granted when the account is created (e.g. store_v2_orders, store_v2_products)
- Change detection
- Webhooks push near-real-time events (store/order/*, store/product/*, store/customer/* and more); polling uses date_modified:min/max filters on Products, Orders, and Customers
- Capabilities
- read · write · webhooks
- Rate limits
- OAuth quota refreshes every 30 seconds and varies by plan (about 20,000 requests/hour on Standard and Plus, 60,000 on Pro, higher on Enterprise); the X-Rate-Limit-Requests-Left header reports remaining calls.
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.
How it works
How to connect Bigcommerce to Bill — 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 Bigcommerce and Bill with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Bigcommerce
connected
Bill
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Bigcommerce and Bill 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 · Bigcommerce ⇄ BillCustomers 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.
Bigcommerce BillCompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Bigcommerce and Bill integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Bigcommerce and Bill: authenticate both systems, choose the objects to sync (such as Bigcommerce's Customers and Brands), map fields visually, and changes propagate both ways in milliseconds — no code required.
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On the Bill side: Invoices, Customers, Payments, Chart of Accounts, plus custom fields where Bill exposes them. On the Bigcommerce side: Customers, Categories, Brands, Inventory. 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 Bigcommerce and Bill: Catalog and pricing stay aligned; Refunds and credits reconcile; Where Bigcommerce originates orders: sales flow into the books. Products, SKUs, and prices maintained on one side propagate to the other, so what the store sells and what the ledger books stay in step.
-
Bigcommerce: REST Management API (V2 and V3), plus GraphQL Storefront and Admin APIs. Authentication: OAuth API account credentials — a store-generated client ID and permanent access token sent in the X-Auth-Token header, limited to the OAuth scopes granted when the account is created (e.g. store_v2_orders, store_v2_products). 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. Stacksync manages authentication, retries, and rate limits on both sides.
-
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. Bigcommerce: Inventory can be tracked at the product or variant level, and multi-location stock uses the separate V3 Inventory API, so writes must target the right model. Stacksync's field mapping accounts for these differences between Bigcommerce and Bill 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
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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