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ERP data migration where every number still adds up

Backendz moves your customers, suppliers, stock, orders and financial history into a new ERP: cleaned, mapped, tested and reconciled against your old system, so day one starts with data your team trusts.

Or see how we engage first — four shapes, no sales call required.

  • Data audits
  • Data cleansing
  • Duplicate removal
  • Field mapping
  • Data transformation
  • Spreadsheet migration
  • Sage migration
  • Legacy database extraction
  • Opening balances
  • Stock & valuation
  • Open orders
  • Historical transactions
  • Trial migrations
  • Reconciliation reports
  • Cut-over planning
  • Archive access

We move your data without losing your history

  • No more going live with customer records full of duplicates

  • Stop discovering stock figures that don't match on day one

  • Forget opening balances that take finance a month to fix

  • Done with years of history left behind in a system nobody can open

  • Skip a migration that's only tested on the weekend of go-live

  • Say bye to copying spreadsheets into import templates by hand

Why choose Backendz for ERP Data Migration?

We've migrated live databases

Including SQL Server migrations and upgrades between live and staging environments, with archived backups and batch processing.

Reconciled, not assumed

Totals, counts and balances checked between old and new systems before sign-off.

Rehearsed before go-live

At least one full trial migration, so the real cut-over has no surprises.

Clean on the way in

Duplicates, gaps and bad formats fixed before they reach the new ERP.

We build ERP Data Migration

Four ways this usually starts

Most enquiries land in one of these. If yours does not, say so on the call — we would rather shape the engagement than sell you the nearest shape we have.

Most teams start here

Moving off spreadsheets

  • Spreadsheets audited and cleaned
  • Data mapped into the new ERP's structure
  • Validated imports with error reports
  • Typical timeline: 2–6 weeks

Best for: Businesses running on spreadsheets and shared drives

Moving off Sage or an old ERP

  • Data extracted from the old system
  • History, balances and open items transferred
  • Reconciled against the old system

Best for: Businesses replacing an outgrown system

Several systems into one

  • Customers, products and suppliers merged across sources
  • Duplicates resolved with agreed rules
  • One clean master record for each

Best for: Businesses consolidating tools or companies

Keep the old history accessible

  • Archive of historical data you don't migrate
  • Searchable and reportable when needed
  • Old system safely retired

Best for: Businesses with years of records to retain

Ideas that became systems in production

Every card is a build we shipped and still support. Open one for the decisions behind it.

We serve the best in the industry

All of it, written down

What falls inside this service. Nothing here is an upsell discovered later.

What we migrate

  • Customers
  • Suppliers
  • Products and stock
  • Prices
  • Open orders
  • Invoices
  • Opening balances
  • Transaction history
  • Assets
  • Employees

Where from

  • Spreadsheets
  • Sage
  • QuickBooks
  • Xero
  • Legacy ERPs
  • SQL Server and other databases
  • CSV exports

Keeping it accurate

  • Data audit
  • Cleansing rules
  • Mapping sign-off
  • Trial migrations
  • Reconciliation reports
  • Rollback plan

Stack

  • SQL Server
  • PostgreSQL
  • Python
  • pandas
  • .NET
  • Azure Data Factory
  • SSIS
  • CSV and Excel tooling

How it works

The sequence matters more than the label. Skipping the first one is how projects in this area go wrong.

  1. We review every source for quality, duplicates and gaps.

Planning session with notes on the wall

From the people who use it daily

Operations directors, CTOs and plant managers — the ones still using the system a year after the invoice cleared.

Operations manager holding a tablet in a bright logistics officeFreight operator · 14 depots
We wanted answers our team could check against the original document. Having the relevant clause beside the response makes the assistant useful when reviewing policies and contracts.
Emma CollinsHead of Business Operations at Clearbrook Advisory
We needed scheduling, availability and shift changes in one place. Backendz shaped the system around the way our operations team works and stayed involved after launch to help us refine it.
James CarterOperations Director at Northbridge Facilities
Our rental journey had to work for both vehicle owners and travellers. Backendz brought listings, availability and bookings together into a platform that feels straightforward to use.
Sophie BennettCo-founder at Roamway Rentals

Ask for references and we will put you on a call with the team that runs the system — not a case study PDF.

References available on request

We wanted a practical way to review PPE and safety-zone events using our existing cameras. The team focused on the situations our site managers need to investigate and made the footage easier to review.
Daniel BrooksSite Operations Manager at Oakmere Construction
A single headcount does not tell us where congestion is developing. The zone-based view gives our team a clearer picture of how people are moving and where attention may be needed.
Olivia ReedVenue Operations Director at Cedarhall Events
The priority was a counting workflow our warehouse team could use during a normal shift. Backendz connected image-based counts with the records we already use and made discrepancies easier to review.
Michael TurnerWarehouse Manager at Harbourline Logistics
Tender preparation involves gathering evidence and getting the right people to review each section. Backendz brought those steps into one workspace, with drafts our team can check and approve.
William ParkerBid Manager at Westhaven Technical Services
Our information was spread across several operational systems. Backendz designed a clearer way to ask questions, inspect the supporting evidence and keep approval with our team before an action is taken.
Charlotte HayesChief Operating Officer at Elmbridge Services Group
Our estimating process needed to reflect how we actually price work. Backendz took time to understand the inputs and rules, then built a quoting journey our team could review and refine.
Thomas MitchellManaging Director at Ridgewell Roofing & Cladding
The reconciliation workflow gives our finance team one place to review mismatches and supporting records. We can trace an exception back to its source and decide what needs attention.
Henry WilsonFinance Director at Ashford Distribution
The team took time to understand how our staff work between appointments. The resulting system brings scheduling and client information together without making the day more complicated.
Amelia FosterHead of Operations at Meadowcrest Care
We had outgrown the spreadsheets that held our pricing rules. Backendz helped turn that knowledge into a quoting tool we can maintain and explain to new colleagues.
George EvansManaging Director at Stonefield Fabrication
We could review working features throughout the build and give specific feedback. That made it easier to keep the product focused on the people using it.
Isabel MorganProduct Director at Brightpath Learning
Connecting our sales and inventory systems was the priority. The integration gives our team a clearer view of updates and a practical way to investigate records that need review.
Jack HarrisonTechnology Manager at Westbrook Retail
Our field team needed access to job details away from the office. The mobile workflow keeps the relevant information close at hand and gives the office a clearer view of progress.
Grace PhillipsOperations Lead at Alderway Field Services
The cloud work started with understanding our existing systems and dependencies. The team documented the setup and gave us a clearer basis for monitoring and ongoing maintenance.
Oscar BennettIT Director at Brookvale Manufacturing
We wanted a client portal that reflected how we deliver our services. Backendz brought documents, requests and progress updates into a straightforward experience for clients and staff.
Lily ThompsonCommercial Director at Willowbank Consulting
The engineers worked alongside our team and explained their decisions clearly. Code reviews and practical documentation helped us stay involved throughout delivery.
Freddie ClarkeHead of Engineering at Redwood Energy Services
Our teams were entering the same information into several tools. Backendz mapped the process with us and built a more connected workflow with clear review points.
Alice CooperBusiness Systems Manager at Fairhaven Property Group
Operations manager holding a tablet in a bright logistics officeFreight operator · 14 depots
We wanted answers our team could check against the original document. Having the relevant clause beside the response makes the assistant useful when reviewing policies and contracts.
Emma CollinsHead of Business Operations at Clearbrook Advisory
Our rental journey had to work for both vehicle owners and travellers. Backendz brought listings, availability and bookings together into a platform that feels straightforward to use.
Sophie BennettCo-founder at Roamway Rentals
A single headcount does not tell us where congestion is developing. The zone-based view gives our team a clearer picture of how people are moving and where attention may be needed.
Olivia ReedVenue Operations Director at Cedarhall Events
Tender preparation involves gathering evidence and getting the right people to review each section. Backendz brought those steps into one workspace, with drafts our team can check and approve.
William ParkerBid Manager at Westhaven Technical Services
Our estimating process needed to reflect how we actually price work. Backendz took time to understand the inputs and rules, then built a quoting journey our team could review and refine.
Thomas MitchellManaging Director at Ridgewell Roofing & Cladding
The team took time to understand how our staff work between appointments. The resulting system brings scheduling and client information together without making the day more complicated.
Amelia FosterHead of Operations at Meadowcrest Care
We could review working features throughout the build and give specific feedback. That made it easier to keep the product focused on the people using it.
Isabel MorganProduct Director at Brightpath Learning
Our field team needed access to job details away from the office. The mobile workflow keeps the relevant information close at hand and gives the office a clearer view of progress.
Grace PhillipsOperations Lead at Alderway Field Services
We wanted a client portal that reflected how we deliver our services. Backendz brought documents, requests and progress updates into a straightforward experience for clients and staff.
Lily ThompsonCommercial Director at Willowbank Consulting
Our teams were entering the same information into several tools. Backendz mapped the process with us and built a more connected workflow with clear review points.
Alice CooperBusiness Systems Manager at Fairhaven Property Group
We needed scheduling, availability and shift changes in one place. Backendz shaped the system around the way our operations team works and stayed involved after launch to help us refine it.
James CarterOperations Director at Northbridge Facilities

Ask for references and we will put you on a call with the team that runs the system — not a case study PDF.

References available on request

We wanted a practical way to review PPE and safety-zone events using our existing cameras. The team focused on the situations our site managers need to investigate and made the footage easier to review.
Daniel BrooksSite Operations Manager at Oakmere Construction
The priority was a counting workflow our warehouse team could use during a normal shift. Backendz connected image-based counts with the records we already use and made discrepancies easier to review.
Michael TurnerWarehouse Manager at Harbourline Logistics
Our information was spread across several operational systems. Backendz designed a clearer way to ask questions, inspect the supporting evidence and keep approval with our team before an action is taken.
Charlotte HayesChief Operating Officer at Elmbridge Services Group
The reconciliation workflow gives our finance team one place to review mismatches and supporting records. We can trace an exception back to its source and decide what needs attention.
Henry WilsonFinance Director at Ashford Distribution
We had outgrown the spreadsheets that held our pricing rules. Backendz helped turn that knowledge into a quoting tool we can maintain and explain to new colleagues.
George EvansManaging Director at Stonefield Fabrication
Connecting our sales and inventory systems was the priority. The integration gives our team a clearer view of updates and a practical way to investigate records that need review.
Jack HarrisonTechnology Manager at Westbrook Retail
The cloud work started with understanding our existing systems and dependencies. The team documented the setup and gave us a clearer basis for monitoring and ongoing maintenance.
Oscar BennettIT Director at Brookvale Manufacturing
The engineers worked alongside our team and explained their decisions clearly. Code reviews and practical documentation helped us stay involved throughout delivery.
Freddie ClarkeHead of Engineering at Redwood Energy Services

Why Backendz

5 yrs

In production

Ops CopilotTender Response DrafterPolicy & Contract AssistantPallet CountingConstruction Site PPE & Safety MonitoringCrowd Density MonitoringDigital Security PlannerVirtual EstimatorJoblogyPamacraftsRollBnBVenus AestheticsShiftTrackerFreight DispatchInvoice Reconciliation AIChilled TraceabilitySteel Quoting EngineFactory Floor AppFleet Driver App

We quote fixed and we hold it

2

Platforms run in-house

Data auditsData cleansingDuplicate removalField mappingData transformationSpreadsheet migrationSage migrationLegacy database extraction
Cloud Strategy & ArchitectureCloud MigrationCustom ERP DevelopmentInfrastructure ModernisationCloud EngineeringERP ImplementationCloudOpsERP IntegrationDevOpsSupport & Managed Cloud ServicesERP Customisation & ModulesCloud Cost OptimisationERP Data MigrationCloud Security & ComplianceAI & Edge InfrastructureERP Support & OptimisationSaaS Stack AuditCustom CRM DevelopmentCustom HR & Workforce ManagementCustom Job & Field Service ManagementCustom Client Portals & BookingSaaS Data Migration & ExitAI Proof of Concept & MVP
Opening balancesStock & valuationOpen ordersHistorical transactionsTrial migrationsReconciliation reportsCut-over planningArchive access
AI Agent DevelopmentCustom AI Assistants & ChatbotsGenerative AIAI Workflow AutomationNatural language processingCustom Software DevelopmentComputer Vision DevelopmentWeb App DevelopmentMobile App DevelopmentAI Video Analytics for CCTVProduct DevelopmentMVP DevelopmentUX/UI DesignApplication ModernisationSoftware Testing & QAMachine Learning & Predictive AnalyticsERP & operationsAI Product DevelopmentData & cloudProduct & designAutomation & integrationsSupport & operations

45

Services, one team

An engineer at work on a production system

Senior engineers, not account managers

24/7 production support and monitoring

Still running on workarounds?

FAQ

The things people ask before they commit.

Still have questions?

Ask it on the call. We would rather answer an awkward question early than discover it in month three.

Book a call
What is ERP data migration?

ERP data migration is moving business data, such as customers, suppliers, stock, orders and financial history, from spreadsheets or old systems into a new ERP. It includes extracting, cleaning, mapping, importing and reconciling the data so the new system starts with accurate information.

How much historical data should we migrate?

Most businesses migrate open items, opening balances and one or two years of history, then archive older records in a searchable form. This keeps the new ERP clean while preserving access to history.

How do you make sure nothing is lost?

We reconcile record counts, totals and balances between the old and new systems after each trial and the final migration, and review exceptions with your team before sign-off.

Can you migrate data from spreadsheets?

Yes. Spreadsheets are the most common source. We clean and standardise them, resolve duplicates and map them into the ERP's structure before importing.

What is a trial migration?

A trial migration is a full rehearsal using real data in a test environment. It finds mapping and quality problems before go-live, so the final cut-over is predictable.

How long does ERP data migration take?

Simple migrations from spreadsheets can take 2 to 3 weeks. Migrations from several systems with long histories take longer and run alongside the wider implementation.