System Integration Services

Who system integrations are for

System integration is for business owners and operations leaders who have invested in good software — but find that each tool operates in its own silo. You might run QuickBooks for accounting, Shopify for eCommerce, HubSpot or Salesforce for sales, and a spreadsheet or custom database for everything else. Each system works fine on its own. Together, they create a daily tax of manual data entry.

This service is a strong fit if your team spends time exporting CSV files, copy-pasting between dashboards, or maintaining duplicate records across platforms. It is also the right move when you have outgrown Zapier-style connectors that break under volume or cannot handle the logic your business requires.

We work with companies in retail, eCommerce, professional services, healthcare, logistics, and manufacturing — anywhere multiple software tools need to share data reliably. You do not need a technical team in-house. You need a partner who understands both your business processes and the APIs behind your tools.

Symptoms of disconnected systems

If these patterns show up in your operation, integration will save measurable time and reduce costly errors.

• Orders from Shopify are manually entered into QuickBooks or your fulfillment system
• CRM contacts and sales data do not match what accounting shows for the same customer
• Inventory counts in your store platform differ from what your warehouse system reports
• Your team exports reports from one tool and imports them into another every week
• Customer information exists in three places and no one is sure which is current
• You pay for overlapping tools because neither one has the data the other needs
• A key employee is the only person who knows how to move data between systems — and that is a risk
• Simple connectors like Zapier work for a while, then break or hit limits as volume grows

These are system problems, not people problems. The fix is connecting your tools so data syncs automatically, accurately, and in both directions when needed.

What we deliver — integration outcomes

A finished integration project at Velorian Systems gives you a connected business stack — not a patchwork of manual workarounds.

• System audit and data map — documentation of every platform, what data lives where, and how it should flow
• Custom API connections — reliable integrations built on official APIs, not fragile screen-scraping
• Two-way data sync — changes in one system reflected in the other, with conflict resolution rules
• Data transformation and mapping — fields matched correctly even when systems use different formats
• Error handling and logging — failed syncs caught and surfaced, not silently lost
• Testing against real data — validated with your actual records before going live
• Documentation and monitoring — your team knows what runs, and we watch for issues after launch

The result: one source of truth across your business tools, fewer errors, hours returned to your team, and confidence that when a customer places an order, every downstream system knows about it instantly.

Platforms we integrate most often

Every integration project is custom, but these are the platforms we connect frequently for Michigan and nationwide clients.

• Accounting: QuickBooks Online, QuickBooks Desktop, Xero, FreshBooks
• eCommerce: Shopify, WooCommerce, BigCommerce, Square Online
• CRM and sales: HubSpot, Salesforce, Zoho CRM, Pipedrive
• Payments: Stripe, Square, PayPal
• Shipping and fulfillment: ShipStation, Shippo, FedEx, UPS APIs
• Marketing: Mailchimp, Klaviyo, ActiveCampaign
• Operations: Google Workspace, Microsoft 365, Airtable, custom databases
• Legacy systems: On-premise databases, older ERP systems, custom-built internal tools

If your platform has an API — or can export data on a schedule — we can connect it. When deeper workflow logic is needed on top of those connections, we pair integration work with our workflow automation services.

Common integration scenarios

These are representative projects — yours will be scoped to your specific stack and business rules.

• Shopify → QuickBooks: New orders sync to accounting automatically with line items, taxes, and payment status mapped correctly
• CRM → email marketing: Contact updates in HubSpot trigger list changes and personalized campaigns in Mailchimp or Klaviyo
• eCommerce → fulfillment: Orders flow from your store to ShipStation or your warehouse system with inventory decremented in real time
• Payment → invoicing: Stripe or Square transactions create matching records in QuickBooks with proper categorization
• Lead capture → CRM → sales pipeline: Website forms create CRM records, assign owners, and trigger follow-up sequences
• Legacy database → modern cloud app: Historical data from an older system accessible through a new custom portal or dashboard
• Multi-store inventory sync: Stock levels consistent across Shopify, Amazon, and your internal inventory system

When your integration needs custom server logic or a dedicated backend, we combine this work with our custom backend development service to build middleware that handles complex data flows your off-the-shelf connectors cannot support.

Our process and timeline

Integration projects follow a clear path from discovery to live sync.

Week 1 — Discovery and system audit. We inventory every platform involved, identify data fields that need to sync, map current manual processes, and define success criteria. You get a written integration plan with a fixed quote.

Weeks 2–3 — Build and configure. We develop API connections, write data transformation logic, configure sync schedules or real-time triggers, and set up error handling. Progress is shared in weekly check-ins.

Week 4 — Testing and validation. We run the integration against your real data — not test records. Your team verifies that synced data matches expectations in both systems before anything goes to production.

Week 5 — Deployment and monitoring. We go live, monitor the first sync cycles closely, and provide documentation. Support and expansion are available as your needs grow.

Multi-system projects with legacy connections typically run 6–8 weeks. We deliver the highest-priority connection first when possible so you see value while additional integrations are built.

What drives cost — honest pricing ranges

Integration pricing depends on how many systems are involved, how complex the data mapping is, and whether legacy or custom platforms require additional connector development.

• $5,000–$15,000 — Two-system integration. Connect two platforms with straightforward data sync. Example: Shopify orders → QuickBooks invoices.
• $15,000–$35,000 — Multi-platform integration. Three or more systems, bidirectional sync, data transformation, and error handling. Example: eCommerce + CRM + accounting + fulfillment.
• $35,000+ — Enterprise or legacy integration. Legacy ERP connections, high-volume processing, custom middleware, and complex business rules.

Cost drivers include the number of data fields being synced, whether sync is one-way or bidirectional, how clean your existing data is, API quality and documentation of the platforms involved, and whether real-time sync is required versus scheduled batches.

We provide a fixed-price quote after the discovery audit. You know the investment before we start building. Most integrations pay for themselves within the first quarter through labor savings and error reduction alone.

Integration vs. automation — and when you need both

Integration and automation are related but distinct. Integration connects systems so data can move between them. Automation adds the logic — when something happens in System A, do these specific things in Systems B, C, and D, notify this person, and log the result.

Many businesses need both. A Shopify-to-QuickBooks connection is integration. "When an order exceeds $500, create the QuickBooks invoice, notify the account manager in Slack, and add the customer to a VIP segment in the CRM" — that is automation built on top of integration.

Velorian Systems offers both services and often delivers them together. If you are not sure where to start, our free consultation maps your systems and recommends the right approach. Learn more about our Michigan practice on custom software development in Michigan, or call (734) 536-8359 to talk through your stack.