Connect Business Systems Without Replacing Them: A Practical Guide

Most companies never designed their software stack. Instead, they bought one tool at a time, each to fix the problem in front of them that year.

So the CRM came from sales, the accounting package from the finance director, and the project tool from operations. Each one works well on its own. However, nobody owned the space between them, so a person filled it. Over time that person becomes the only one who knows how the numbers join up.

The fix is rarely a new all-in-one platform. In our experience, the systems are usually fine. What’s missing is an agreed way for data to move between them, which is exactly the gap workflow automation and system design closes.

Integration moves data faster; it doesn’t make it right. If two systems disagree about what a field means, connecting them only automates the disagreement.

Before any build, agree the shared definitions in writing. That means what counts as a “customer”, when a job is “complete”, what “committed cost” includes, and which system owns each field. The UK Government Data Quality Framework is a useful checklist here, even for a private firm.

We learned this the hard way on construction work. On a Procore and Sage reporting project, cost coding varied between project managers. Also, the Sage chart of accounts didn’t match the Procore project structure. No connector could fix that. Agreeing the codes took days; the automation afterwards was the easy part.

Follow the business problem first and the technology second. This is the sequence we use.

1. Map the data journey. Pick one flow, such as order to invoice. Write down every system it touches, who types what, and when.

1. Count the manual effort. Record minutes per task and tasks per week. You’ll need this number to justify the budget and to measure the result.

1. Agree field definitions and ownership. Decide which system is the master for each field. Customers might live in the CRM, while invoices and payment status live in accounting.

1. Clean the existing data. Merge duplicates and fix codes before the first sync, not after.

1. Choose the method. Use the table above. Build, buy, integrate or automate is an objective decision, not a preference for a favourite tool.

1. Build one flow and run it alongside the old process. Two to four weeks of parallel running will surface the edge cases.

1. Add exception handling. Decide who gets alerted when a record fails to sync, and what they do next.

1. Switch off the old manual step. Remove the spreadsheet, or people will keep using it.

If you’re unsure whether to buy a platform or build the link yourself, our build vs buy software guide walks through that call.

Our published case studies show the same pattern: standardise first, connect second.

For a 210-person fit-out contractor, COINS handled finance and Procore handled delivery. A commercial manager spent three days each month reconciling them by hand. We standardised the data and then connected COINS and Procore. Month-end reconciliation fell from 3 days to under 4 hours, and the team absorbed a 40% rise in project volume without new hires.

A main contractor built its management pack from Procore, Sage and three spreadsheets every Thursday. After we fixed cost coding and automated the pull, reporting dropped from 14 hours a week to under 3. We cover that pairing in detail in our Procore Sage integration guide.

Outside construction, a UAE payroll platform struggled to integrate with its customers’ HR and accounting systems. Our fintech payroll integration work reduced data discrepancies and manual work. More sector detail sits on our construction industry page.

Business problem first. Technology second.

Tired of copying data between systems? Book a first consultation with Severus