Bridge Industry Tools and Payments - Connect SimPRO to Square
Your team uses SimPRO and Square every day. Our custom integration ensures data flows between them automatically - no more tab-switching, copy-pasting, or worrying about missed updates.
Why Connect SimPRO to Square?
Invoice and payment data is re-entered between SimPRO and Square manually, doubling the work and risking GST errors at month-end
Square adds complexity: account holds and fund freezes have been reported, particularly for new accounts or businesses with high transaction volumes or unusual patterns
Job scheduling in SimPRO and invoicing in Square are disconnected, delaying payments for completed work
No single source of truth when invoices live in two disconnected tools, so staff second-guess which system has the correct information
SimPRO uses a REST API while Square uses REST + Webhook, requiring careful middleware to translate data formats between the two platforms
How We Help
Every week without this integration costs your Trades & Construction and Manufacturing business 8+ hours/week in manual data handling between SimPRO and Square. Our Harvard-educated consultants build a sync that eliminates that waste permanently. On the technical side, SimPRO uses a REST API with OAuth authentication, which our team handles as part of the build.
Faster Invoicing, Fewer Errors
Invoices flow between SimPRO and Square automatically with correct line items, GST rates, and payment terms. Month-end closes become predictable, and reconciliation discrepancies disappear.
Consistent Product Data Everywhere
Product pricing, stock levels, and catalogue changes in SimPRO are mirrored in Square in real time. No more overselling, price mismatches, or outdated descriptions across channels.
Real-Time Visibility Across Teams
When a record updates in SimPRO, every team member working in Square sees the change instantly. No lag, no stale dashboards, no conflicting reports.
From Job Site to Invoice, Automatically
When a job is completed in SimPRO, invoicing data flows to Square without anyone touching a spreadsheet. Tradies get paid faster, admin gets their weekends back.
SimPRO to Square Use Cases
Scheduled reconciliation between SimPRO and Square
A daily or weekly reconciliation job compares records across both platforms, flags discrepancies, and generates a mismatch report. Catches sync gaps before they become accounting headaches.
Automated error handling and retry for SimPRO/Square sync
When a sync between SimPRO and Square fails due to a rate limit, network issue, or validation error, the integration retries automatically with exponential backoff. Your team is alerted only when intervention is genuinely needed.
Synchronise stock catalogue between SimPRO and Square
Product data, pricing, and stock levels stay consistent across both platforms. When a stoc is added, updated, or discontinued in SimPRO, Square reflects the change within seconds.
Data Mapping
How data flows between SimPRO and Square
| SimPRO | → | Square | Notes |
|---|---|---|---|
| SimPRO Invoices -> ID | → | Square Payments -> id | Unique identifier stored as cross-reference for record linking |
| SimPRO Invoices -> Total | → | Square Payments -> amount | Transaction data validated against both platforms before write |
| SimPRO Invoices -> Status | → | Square Payments -> status | Status values mapped between each platform terminology |
| SimPRO Stock -> id | → | Square Items -> id | Unique identifier stored as cross-reference for record linking |
| SimPRO Stock -> name | → | Square Items -> name | Contact identity fields synchronised to maintain consistency |
| SimPRO Owner/Assignee | → | Square Owner/Assignee | Record ownership mapped between platforms using email address as the matching key |
| SimPRO Record IDs | → | Square External References | Cross-reference identifiers stored on both records for bidirectional lookups and deduplication |
| SimPRO Timestamps | → | Square Audit Log | Created and modified timestamps preserved for sync conflict resolution and compliance |
SimPRO + Square Integration FAQ
Integration pricing depends on complexity, including the number of data objects synced (invoices, products), sync direction, custom business rules, and volume. Most SimPRO to Square integrations fall within our standard integration tier. Book a free assessment to get a specific quote for your requirements.
Yes. All data is transferred over encrypted connections (TLS/SSL). We follow least-privilege API access, using OAuth 2.0 authentication with scoped permissions, never store credentials in plain text, and log all sync activity for audit purposes. For Australian businesses with compliance requirements, we can implement additional safeguards.
Yes, we handle one-time historical data migrations alongside ongoing sync. We map your existing invoices, validate data quality, and run test migrations before the final cutover. Most migrations complete within 4-8 weeks depending on volume.
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Related Resources
SimPRO Integration Guide
Learn about all SimPRO integration capabilities.
Square Integration Guide
Learn about all Square integration capabilities.
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