Pegasus Authorised Partner
Pegasus Opera 3 SQL SE
Complete UK business management software built on Microsoft SQL Server. Financials, Payroll, Supply Chain, CRM and HR in one integrated solution.
- FinancialsReal-time reporting
- Payroll and HRFull UK compliance
- CRMSales and customer management
- Supply ChainStock and purchasing control
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Built on Microsoft SQL Server Enterprise-grade performance with real-time reporting and business intelligence.
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One connected system Financials, Payroll, CRM, HR and Supply Chain in a single integrated platform.
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UK-based implementation and support Direct from a Pegasus Authorised Partner, not an outsourced call centre.
At a glance
Why businesses choose Pegasus Opera 3 SQL SE
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Secure data access for Opera 3
Only the Pegasus Opera Service connects to the database, so your users never touch the data files directly.
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Connects to Power BI and Excel
The Opera 3 Data Connector feeds Power BI, Excel, SharePoint and Copilot, including data from bespoke development.
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A safer migration to Opera 3 SQL SE
Migration tools check your existing Opera data first, and changes can be rolled back if a problem is found.
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Run heavy jobs on the server
Data-intensive tasks can be scheduled to run on the server, so they don’t tie up a user’s PC.
Hosting & data location
Your data. Your infrastructure. Your call.
Opera 3 SQL SE runs on Microsoft SQL Server, so it runs where you need it to: on your own servers, or hosted by Diskel in a London data centre.
More UK businesses are asking where their financial data actually lives and who can reach it. With Opera 3, you choose the answer, and you can change it later.
- Run Opera 3 on your own servers, or have Diskel host it for you
- Diskel-hosted systems sit in a London data centre
- Not tied to a US cloud giant’s platform
- Your setup, your configuration, your data, portable if you ever need to move
- Looked after by our UK-based team
Who uses Opera 3
One system, built for every kind of UK business
From Financials and CRM to Manufacturing, Payroll and Document Management, Opera 3’s modules combine differently depending on what your business needs. Here’s how it fits across sectors.
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Manufacturing
Manufacturing/MRP · Financials · Stock Control
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Construction & CIS
CIS Compliance · Job Costing · Financials
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Wholesale & Distribution
Stock Control · SOP/POP · CRM
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Professional Services
CRM · Document Management · Financials
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Transport & Logistics
Financials · Payroll · Fleet Costing
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Education & Charities
Payroll & HR · Fund Accounting · Reporting
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Agriculture & Horticulture
Stock Control · Payroll · Financials
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Business Services
CRM · Document Management · AP Automation
Pegasus Opera 3 SQL SE
One system.
Every part of your business.
Opera 3 SQL SE is a fully modular ERP built on Microsoft SQL Server, giving your finance team real-time control of every financial process without switching between systems or re-keying data.
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Real-time financial visibility
Every module feeds the Nominal Ledger live. No period-end surprises, no waiting for reports.
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HMRC PAYE and RTI recognised
Statutory payments, auto-enrolment and tax code updates handled automatically.
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Fully modular: pay only for what you need
Start with the financial core and add operational modules as your business grows.
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Live data in Excel via Pegasus XRL
Management accounts and P&L refresh directly from Opera 3, with no copy-pasting.
Not sure which modules you need? We will walk you through the options at no cost and no obligation.
Financial core
Operational modules
Fully modular ERP
Build the system your business actually needs
Pegasus Opera 3 SQL SE is fully modular: every module works standalone or alongside the others. Start with the financial core and add payroll, supply chain, manufacturing, CRM or reporting as your business grows. Filter below to explore by category or find the Diskel add-ons built exclusively for Opera 3.
Showing all modules
Financials
- Sales, purchase and nominal ledgers fully integrated in real time
- Cashbook with bank reconciliation and multi-currency support
- Budgeting, forecasting and cost centre analysis
- MTD-compliant VAT returns submitted directly to HMRC
- Fixed Assets tracking from acquisition through to disposal
Credit Management Centre
- Consolidated real-time view of all customer debt in one dashboard
- Automated chasing workflows — letters, emails and call schedules
- Dispute tracking with reason codes and resolution logging
- Credit limit monitoring with account stop controls
- Reduces debtor days and improves cashflow without extra headcount
Pegasus XRL
- Pull live Opera 3 data directly into Excel — no exporting, no copy-pasting
- Push data back into Opera 3 from Excel, including budgets and journals
- Reports refresh at the click of a button with current figures
- Build P&L, balance sheet and management accounts in familiar Excel
- Works across Financials, Payroll, Supply Chain and more
Fixed Assets
- Multiple depreciation methods — straight line, reducing balance, manual
- Depreciation calculated per period or by days in a period
- Linked to Purchase Ledger and Nominal Ledger automatically
- Cost centre and advanced nominal analysis support
- Full asset register with disposal, revaluation and audit history
Payroll & HR
- HMRC PAYE and RTI recognised — full real-time submissions
- Automated auto-enrolment and pension contribution processing
- Statutory payments — SSP, SMP, SPP calculated automatically
- Self-service employee portal via Pegasus Web Xchange
- HR records, absence tracking and holiday management included
Business Intelligence
- Award-winning dynamic dashboards built into Opera 3
- Cross-module reporting across Financials, Payroll and Supply Chain
- Data Connector integrates with Power BI, SharePoint and Copilot
- Scheduled data refresh keeps dashboards current automatically
- Extends beyond XRL for deeper analysis and cross-system reporting
CRM
- Prospects, customers, suppliers and opportunities in one place
- Full Microsoft Office integration for activity and correspondence
- Pipeline reporting with configurable stages and forecasting
- Linked directly to sales orders and financial transactions
- Marketing campaign tracking and follow-up management
Supply Chain Management
- Sales orders, purchase orders and stock control in one system
- Multi-warehouse stock management with batch and serial tracking
- Automated order fulfilment and delivery note generation
- Reorder point alerts and supplier lead time management
- Full traceability from purchase through to customer delivery
Manufacturing
- Bill of Materials with multi-level assembly structures
- Works orders, work in progress tracking and labour costing
- Batch and serial item location with full assembly cost reports
- Kitting function to move finished assemblies directly into stock
- MRP planning to manage material requirements against demand
Contract Costing
- Job cost and revenue tracking against budgets in real time
- Cost categories: labour, contractor, direct expense, stock
- Interim billing and contract valuations linked to Nominal Ledger
- Integrates with Pegasus CIS 5 for construction-sector compliance
- Detailed WIP reporting across multiple concurrent contracts
Web Xchange
- Browser-based self-service portal for employees and managers
- Payslip access, holiday requests and absence submission online
- Manager approvals for leave, timesheets and expenses
- No additional desktop software required for end users
- Configurable access levels per role and department
Data Connector
- Connects Opera 3 data to Power BI, SharePoint and Microsoft Copilot
- Pre-built connectors — no developer resource required to set up
- Enables cross-system reporting beyond what XRL provides
- Scheduled data refresh keeps dashboards current automatically
- Supports Excel, Teams and other Microsoft 365 integrations
AutoInvoicing
- Automated capture and posting of supplier invoices to Opera 3 PL
- OCR extraction of invoice data — header, lines, VAT and totals
- Configurable multi-level approval workflows before posting
- Exception handling with clear audit trail and resubmission
- Eliminates manual keying and speeds up month-end close
AutoFiling
- Scan and file documents against Opera 3 records automatically
- WIA-compatible scanner support with 200+ file type acceptance
- Instant document retrieval from within Opera 3 transactions
- Migration utility for existing Opera 3 Document Management data
- Reduces paper filing and audit preparation time significantly
Resources & Downloads
Pegasus Opera 3 SQL SE datasheets
Download the official Pegasus Opera 3 SQL SE datasheets for each module (all PDFs). Not sure where to start? The upgrade guide is a good first read.
- Why upgrade to Opera 3 SE? The case for moving to SQL SE: what's new, what's improved (PDF, opens in a new tab)
- Opera 3 SQL SE: Financials overview Complete overview of the financial core modules (PDF, opens in a new tab)
Financial core modules
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Fixed Assets
Asset register, depreciation, disposal and revaluation linked to Nominal Ledger
Download PDF: Fixed Assets datasheet (opens in a new tab) -
Payroll & HR
HMRC PAYE and RTI recognised, auto-enrolment, statutory payments and HR records
Download PDF: Payroll and HR datasheet (opens in a new tab) -
Data Provisioning Service
HMRC DPS integration: automatic P6/P9 tax code downloads from the Government Gateway
Download PDF: Data Provisioning Service datasheet (opens in a new tab) -
CRM: Sales Pipeline Management
Prospects, pipeline, opportunities and customer activity integrated with Opera 3
Download PDF: CRM Sales Pipeline Management datasheet (opens in a new tab) -
Business Intelligence: XRL
Live Opera 3 data in Excel, dynamic dashboards and management accounts at a click
Download PDF: Business Intelligence XRL datasheet (opens in a new tab) -
Data Connector
Connect Opera 3 data to Power BI, SharePoint and Microsoft Copilot
Download PDF: Data Connector datasheet (opens in a new tab) -
Costing
Job cost and revenue tracking, WIP reporting and contract valuations
Download PDF: Costing datasheet (opens in a new tab)
Operations modules
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Supply Chain Management
Sales orders, purchase orders and stock control with full traceability
Download PDF: Supply Chain Management datasheet (opens in a new tab) -
Purchase Order Processing
Procurement from requisition to receipt, supplier pricing and Purchase Ledger integration
Download PDF: Purchase Order Processing datasheet (opens in a new tab) -
Bill of Materials
Multi-level assemblies, works orders, WIP tracking and labour costing
Download PDF: Bill of Materials datasheet (opens in a new tab) -
CIS: Construction Industry Scheme
CIS 5 compliance, contract costing and project financials for contractors
Download PDF: CIS Construction Industry Scheme brochure (opens in a new tab)
Opera 3 SQL SE is modular, so the cost depends on which modules you need and how many users require access. There's no single list price — a business running Financials and Payroll for five users will pay very differently to one running the full suite across twenty.
The best starting point is a conversation with us. We'll ask the right questions, recommend only what you actually need, and give you a clear figure. Get in touch for a no-obligation quote.
Quite possibly — it depends on your current setup, which modules you're running, and any customisations that may be in place. Get in touch and we'll discuss what a transition would look like.
It depends on three things: what system you're coming from, how much data needs migrating, and whether any bespoke configuration is required. A straightforward implementation for a business with clean data and standard requirements will move faster than one involving complex data migration or custom workflows.
We'll give you a realistic timescale at the scoping stage — not an optimistic one that slips.
Yes. Opera 3 SQL SE runs on Microsoft SQL Server, which means it can be hosted on your own servers or in the cloud. Diskel offers hosted deployment on UK infrastructure — your data stays in the UK, subject to UK law, with no dependency on overseas platforms.
If you prefer on-premise, that works equally well. The full feature set is available either way.
Opera 3 SQL SE is the current generation of the product, built specifically for Microsoft SQL Server. It offers improved performance, better reporting capabilities, and a more modern interface than earlier versions of Opera 3. If you're running an older Pegasus product, SQL SE is the natural upgrade path.
No. Opera 3 is fully modular — you start with what you need and add modules as your business grows or your requirements change. Most businesses begin with the financial core and expand from there. You won't be paying for functionality you're not using.
We manage Pegasus updates on your behalf. You won't need to coordinate directly with Pegasus or worry about whether an update will affect your configuration or add-ons. Nothing changes on your system without you knowing about it first.
Yes. Opera 3 SQL SE supports MTD for VAT — VAT returns can be submitted directly to HMRC from within the system. Pegasus keeps the software updated in line with HMRC requirements, and we manage those updates for you.
Yes. AutoInvoicing and AutoFiling are products built and maintained by Diskel. They integrate directly with Opera 3 and are not available through other resellers. If you're interested in either, visit autoinvoicing.co.uk (opens in a new tab) or get in touch.
What do users say about Opera 3?
Real feedback from verified Opera 3 users on Capterra, an independent software review platform.
Rates Opera 3 as the best payroll software they've used, covering auto-enrolment pensions and statutory payments, with timesheets that import seamlessly rather than needing to be keyed in by hand.
Has run Opera 3 for staff payroll for several years, calling it easy to train new payroll coordinators on and completely reliable, with very few issues along the way.
Describes Opera 3 as a cheap, easy enterprise accounting platform with strong integration between primary books, bank feeds, cash receipts and the nominal ledger, handling multiple companies and currencies well.
Highlights efficient integration across accounting, payroll, CRM, document management and supply chain management as the standout strength, recommending it for businesses wanting one connected system.
Pegasus Authorised Partner since 1978
Ready to see Opera 3 in action?
Book a free demonstration with our Pegasus Opera 3 specialists. We'll show you the modules relevant to your business and an honest look at whether Pegasus Opera 3 SQL SE is the right fit.
- Free initial consultation
- No obligation
- UK-based specialists
- Pegasus Authorised Developer