Most UK businesses are haemorrhaging money through disconnected systems, and the finance team is often the first to see it. Every manual data entry, every duplicated record, every time your team spends three days reconciling numbers that should match automatically - that's cash draining from the business. As a CFO, you know exactly what this costs.
Here's a common scenario: sales closes deals in one system whilst finance operates in another. Nobody sees the full picture. Sales can't check what's in the warehouse on the spot. Finance discovers problems weeks after they've occurred. Customer service has no idea what operations promised. When you're trying to close the books or report to leadership, you're working with data you don't fully trust.
It's not ERP versus CRM anymore. Both systems serve different purposes, and most businesses need them working together. The question for finance leaders isn't whether to integrate - it's how to build a business case that accounts for the true cost of doing nothing.
Why CRM and ERP Integration Matters for Finance
Dynamics 365 CRM stores everything about your customers. Every conversation, every preference, every interaction. When someone speaks to a customer, they see the entire history. No asking customers to repeat themselves. No contradicting what a colleague promised last week.
This isn't about being nice. CRM systems drive revenue because they help you stop losing customers through poor service. Your people spot upsell opportunities because they can see what customers buy, not what you think they might need.
Microsoft Dynamics 365 Business Central - your ERP - runs your operations. Finance, warehousing, production, services. Everything that makes money or spends money, tracked in one place. Instant visibility of what's happening across the business. Workflows that run automatically without someone needing to remember to update a spreadsheet.
Modern business management software like Business Central eliminates the chaos that comes from running operations on disconnected spreadsheets and legacy systems that don't talk to anything else.
The Real Cost of Disconnected Systems
Working with UK businesses on integration projects, we see how legacy systems using incompatible formats mean integrating them costs a fortune in custom development. Even when you manage to connect them, the integration breaks with every update. Different departments maintain their own versions of the truth, creating conflicting information nobody can rely on. Research from Gartner shows that poor data quality costs organisations an average of £10.5 million per year, with data silos being a primary contributor to these losses.
From a finance perspective, this inability to break down silos creates real problems. Month-end close takes longer than it should. You can't give leadership accurate forecasts because the underlying data is fragmented. Decisions get made based on incomplete, outdated, contradictory information whilst competitors with unified systems move faster.
Understanding Integration Risks Before You Start
Before you start an integration project, it's worth understanding what you're up against. As finance leaders, we're naturally cautious about IT projects - we've all seen the budget overruns and failed implementations. The key is knowing where the real risks lie.
Like many consultancies, we've focused our integration expertise on client success rather than perfecting our own internal systems first. That practical experience - seeing what works and what fails across different businesses - gives us honest insight into both the opportunities and the pitfalls you'll face.
What You're Up Against
Separate platforms cost you every day through errors, duplicated work, and time wasted matching information across systems. Different systems speak different languages - what's a "customer" in your CRM may not align with "accounts" in your ERP - creating conflicting versions of customer records, inventory positions, and financial data whilst you miss business opportunities because you can't see them when they matter.
From a financial governance perspective, this creates audit headaches. You can't easily trace transactions across systems. Compliance reporting requires manual consolidation. The risk of errors in financial statements increases because data flows through too many manual touchpoints.
Why Integration Projects Fail
Integration attempts often fail for predictable reasons, and we see these patterns repeatedly in client implementations. Understanding these helps you avoid them in your business case.
Legacy systems weren't designed to connect. Even when APIs exist, they're poorly documented or need expensive middleware just to make basic connections work. This is where scope creep starts and budgets balloon.
Planning gets skipped or rushed. IT builds integrations in isolation from the people who'll use them. Nobody defines what success looks like from a business outcome perspective. The project delivers something technically functional that doesn't solve the business problem. Finance teams end up maintaining manual workarounds because the integration doesn't cover their specific workflows.
Applications don't match your workflows. You're forced into expensive customisations to make software do what you need. Users resist because the new system makes their jobs harder, not easier. This is particularly problematic for finance teams with specific period-end processes or compliance requirements.
Security and compliance become complicated. More integration points mean more vulnerabilities. Access controls don't work consistently across systems. Compliance requirements get complicated when data lives everywhere. As CFO, you're accountable for data governance and financial controls - fragmented systems make this harder to manage.
Skills and support prove inadequate. Teams lack the skills needed to implement and maintain integrations. Without adequate support, even good technology fails because nobody knows how to use it effectively. Budget for proper training and ongoing support from the start.
These risks are real, but they're manageable. The difference between integration projects that fail and those that succeed isn't the technology - it's how you approach implementation and change. Understanding these risks helps you build a business case that accounts for them, rather than discovering problems halfway through when budgets are spent and timelines have slipped.
What Integrated CRM and ERP Systems Deliver
When CRM and ERP systems work together, customer data from your CRM and financial, inventory, and order data from your ERP share a single source of truth. Manual copying between systems stops. Everyone works from current data, not information that's three days old.
Create a new customer in CRM, and they exist immediately in ERP with all the right details. Land a contract, and the order processes automatically with instant stock checks and accurate delivery dates. No double entry. No waiting for someone in another department to update their system.
This fixes the CRM database problems that plague separate platforms - you finally get a single, accurate view of your customers instead of multiple conflicting versions scattered everywhere.
Sales Teams That Sell
Your sales people waste time chasing information that should be at their fingertips. With unified data from Microsoft Dynamics 365, they see everything instantly. Past interactions, inventory levels, pricing, previous orders. Deals close faster because nobody's waiting for someone else to check something.
The data shows buying patterns, identifies customers ready for renewal, highlights accounts that need attention. Your people act on intelligence, not hunches.
Forecasting becomes reliable. Everyone works from accurate pipeline data. Finance isn't surprised by revenue numbers that bear no resemblance to what sales predicted. When you're building budgets or planning for growth, you're working with data you can defend.
Operations That Eliminate Bottlenecks
Automation handles routine tasks. Win a customer, and the order flows straight through to operations with all the details correct. Stock gets checked, delivery gets scheduled, finance gets notified. Nobody's chasing paperwork or clarifying what someone meant.
Your finance team does analysis instead of data entry. Month-end close takes hours, not days. More importantly, they spend time on activities that add value - variance analysis, cash flow forecasting, scenario planning - instead of hunting down discrepancies in spreadsheets. This matters when you're securing financing or negotiating with suppliers based on accurate working capital positions.
The business intelligence you get from what is a CRM database when integrated with ERP finally delivers on the promise - real insights from real data, available when you need them. You can answer questions about profitability by customer, product line performance, or cash conversion cycle without waiting for someone to pull reports from three different systems.
Customer Retention That Drives Growth
Customers notice when you've got your act together. They call with a question, and someone has the answer immediately. They place an order, and you tell them exactly when it'll arrive. Something goes wrong, and you fix it before they're annoyed.
Customers stay with suppliers who don't waste their time. They spend more with businesses that remove friction. Long-term relationships develop because every interaction builds on the last one. You understand what they need because you've got detailed records of what they buy, how they use it, what problems they've had.
Real Businesses, Real Results
Grant UK moved one million data records to a unified platform without downtime. They eliminated duplicate data entry, centralised everything, and got their teams working from the same information. The result? Smarter decisions, better efficiency, improved customer service. Their sales team stopped wasting time hunting for information and started selling.
IH London's finance team implemented Business Central and transformed their operations. Processes that required manual intervention now run automatically. Remote working works because everyone accesses the same system. The finance team focuses on strategic activities instead of data wrangling. Sales got a modern system that does what they need instead of fighting outdated software.
You Don't Have to Do This Alone
Integration projects fail when businesses try to manage them without the right expertise. The good news? You don't need to become an integration expert yourself.
The right implementation partner brings practical experience from multiple projects, understands where the risks actually lie, and can navigate the technical complexity whilst you focus on the business case and outcomes. They've seen the patterns that lead to budget overruns and timeline slips - and know how to avoid them.
At TSG, we've guided businesses like Grant UK and IH London through their integration projects. We handle the technical implementation whilst keeping finance leaders informed about progress, risks, and ROI throughout the process. Our Microsoft Solutions Partner credentials mean we understand both the technology and the business outcomes you need.
More importantly, we build in stage gates that tie budget releases to demonstrated progress, track benefits realisation as we go rather than waiting until the end, and ensure your people can use the system effectively when it goes live.
If you want to talk through your specific situation and what integration might look like for your business, get in touch. We'll give you an honest assessment of whether it makes sense for you or not.
The Bottom Line
Integrated CRM and ERP systems make the difference between businesses that grow and businesses that drown in their own inefficiency. As finance leaders, we need to think about this in terms of controllable costs and measurable outcomes.
Customer retention improves when you're not frustrating people with disconnected service - that's revenue protection. Efficiency increases when you're not wasting time on manual processes and error correction - that's cost reduction. Revenue grows when people spend time selling instead of hunting for information - that's top-line growth. These aren't soft benefits; they show up in your financial statements.
Unified Microsoft Dynamics 365 solutions eliminate the silos that make running a business unnecessarily complicated. You see what's happening, make decisions based on facts, and move fast enough to capitalise on opportunities before they disappear. More importantly, you can give leadership accurate, timely information without the usual month-end scramble.
Look at your current systems honestly. Calculate what disconnection costs you in wasted time, missed opportunities, and customer frustration. Factor in the risk cost - the mistakes that happen because data doesn't match, the opportunities missed because you can't see them in time, the working capital tied up in inventory because you can't trust your stock figures. Then work out the business case for fixing it.
Frequently Asked Questions
What is CRM software?
CRM software manages how you interact with customers throughout their entire relationship with your business. It stores contact details, tracks communications, monitors sales opportunities, and helps you understand customer preferences and behaviour. The goal is straightforward: improve relationships, keep customers longer, grow revenue.
What does a CRM system do?
A CRM system gives you a full view of every customer. It tracks every email, call, purchase, support request, and interaction. Your people see the full context when they engage with customers, which means better service, faster problem resolution, and more opportunities to help customers get what they need. In practical terms, it stops your business from annoying customers by forgetting important details or asking them to repeat information you should already have.
What is a CRM database?
A CRM database centralises all information about customers, prospects, suppliers, and contacts. It includes company records, contacts, opportunities, tasks, and purchase history. Everyone in your organisation works from the same current information instead of maintaining separate spreadsheets that get out of sync. When integrated with your ERP system, this database becomes your single source of truth for customer information.
What's the difference between CRM and ERP?
CRM systems manage customer-facing activities like sales, marketing, and service - they focus on who you sell to. ERP systems manage internal operations like finance, inventory, and supply chain - they focus on how you run the business. Modern systems often overlap (Business Central includes CRM capabilities, many CRMs handle basic finance), but most businesses benefit from both working together: CRM to grow revenue, ERP to manage operations, and integration to ensure they're not working against each other.