"Billing cycle times dropped from days to hours. Invoice errors fell to near zero. CPI/RPI price uplifts, once a manual burden, became fully automated."
A leading UK-based SaaS company in the Managed Services sector was starting to feel the limits of its legacy billing system. As its service portfolio expanded and customer expectations evolved, the limitations of its system became harder to ignore.
Manual invoicing processes were driving errors. Pricing structures lacked the flexibility the business now needed. And the operational effort required to manage CPI/RPI-based price uplifts was consuming time that should have been focused on growth.
The company needed more than a software implementation. It needed a partner with deep expertise in subscription billing, systems integration, and enterprise delivery. It found that in Synthesis Systems.
The Challenge
The company’s existing billing infrastructure was starting to constrain growth across four critical areas:
| Challenge | Business Impact |
| Complex Pricing Structures | A rigid product catalog that couldn’t support dynamic or customer-specific pricing models |
| Manual Billing Processes | Time-consuming, error-prone invoicing that created friction for internal teams and clients |
| CPI/RPI Price Uplifts | Manual calculations impacting accuracy, turnaround times, and operational efficiency |
| ERP Integration Gaps | Disconnected CRM and accounting systems creating data inconsistencies and reconciliation risk |
These challenges didn’t exist in isolation. A rigid pricing model created workarounds. Those workarounds introduced manual effort. And manual effort inevitably increased the risk of errors and rework.
The Synthesis Approach
Working in close partnership with BillingPlatform, we led the end-to-end implementation of a next-generation billing system designed to support subscription, usage-based, and hybrid billing models.
True to our advisory first approach, we didn’t simply configure a platform. We designed a scalable billing architecture aligned with the company’s long-term revenue strategy.
What We Delivered
Automated Billing Implementation: Full deployment of BillingPlatform, integrated with existing CRM and accounting systems, replacing fragile manual processes with configurable, auditable workflows.
Custom Invoice Templates: Standardized templates that improved invoice consistency across service lines, reducing discrepancies and billing disputes.
Workflow Automation: Configurable workflows for product attributes and automated CPI/RPI price adjustments, removing a major manual burden from the team.
ERP Integration: API-based integration with Microsoft Dynamics 365 and Microsoft Dynamics 365 Business Central, creating a single source of truth across commercial and financial systems.
Data Consulting & UAT Support: Expert guidance on the BillingPlatform data model and SaaS billing workflows, backed by rigorous user acceptance testing before go-live.
How We Sequenced It
We applied a phased migration approach that allowed the business to transition without disrupting existing customers or interrupting revenue flow.
This wasn’t a big-bang cutover. It was a disciplined, risk-managed implementation, reflecting a principle we bring to every engagement: advisory before implementation, architecture before tools.
The Impact
The results were immediate and measurable:
|
Days → Hours Billing Cycle Time |
Near Zero Invoice Error Rate |
Zero Customer Disruption |
100% CPI/RPI Automation |
Modernized Subscription Management: Flexible product rating models and tax capabilities now support billing scenarios that were previously difficult, or impossible, to deliver.
Improved Accuracy & Speed: Billing cycles were reduced from days to hours, while invoice errors dropped to near zero.
Automated Price Uplifts: Eliminating manual CPI/RPI calculations quickly became one of the most valued operational improvements from the project.
Business Continuity: The phased migration ensured zero customer disruption and uninterrupted revenue throughout the transition.
The Pattern We Keep Seeing
This engagement reflects a pattern we see across the market: companies can scale successfully, only to find that their billing infrastructure has quietly become a constraint rather than an enabler.
The issue is rarely the platform alone. More often, it’s the architecture behind it, and the sequence of decisions around implementation, that determines whether technology accelerates growth or holds it back.
For this client, the combination of the right platform and the right implementation partner unlocked a step-change in operational capability.
Billing is no longer a bottleneck. It’s now part of the foundation.
Is your billing infrastructure ready for the next stage of growth?
Synthesis Systems offers advisory assessments designed to identify where revenue may be leaking, and what it takes to build a resilient, scalable quote-to-cash architecture.