Power BI Migration Services
Move every report off Tableau, Qlik, Cognos, SSRS, and Excel. Land in Power BI with reconciled numbers and zero downtime.
We migrate enterprise reporting estates onto Power BI through a parallel run, not a flag day. Your finance, sales, and operations teams keep their old reports until every number on the new Power BI report matches the source to the cent. Then we cut over.
Submit your report inventory › discovery call within 48 hours › migration assessment plus scoped plan in 5 days › first parallel run report inside 2 weeks of sign-off.
0
Reporting estates migrated to Power BI
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Legacy reports converted and certified
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Parallel run match to source numbers
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Of downtime during cutover
Your team's time investment across a full Power BI migration is approximately 3 to 5 hours per week: one report inventory call, async sign-off on certified measures, and parallel run validation. We handle source extraction, semantic model build, DAX rewrites, row-level security, gateway, and publishing.
The Cost of Staying on Legacy Business
Intelligence
Your old business intelligence license renews next quarter. The reports it produces no one trusts.
“We renewed three legacy business intelligence seats last year for two-hundred thousand. The reports they produce still get rebuilt in Excel before the board meeting because no one trusts the numbers. We are paying twice for the same answer, and getting it late.”
Group Finance Director
Mid-market industrial client, pre-engagement, 2025
Friction
0
Average annual legacy business intelligence license spend across the seven migration engagements we scoped in 2025.
Friction
0
Of legacy dashboards rebuilt in Excel before executive review. The legacy tool is bypassed already.
Friction
0
Per week your analysts spend maintaining legacy reports no one opens past Tuesday morning.
Old way
Flag day cutover. Lost reports. Angry executives.
- Months of rebuilds before a single user sees a Power BI report.
- Cutover weekend ends with reports missing, broken, or off by a row.
- DAX measures invented per report. Same key performance indicator, three different numbers.
- Legacy license renewed anyway because no one trusts the new estate.
After Redefine
Parallel run. Reconciled to the cent. Then cut over.
- First parallel run Power BI report inside 2 weeks of sign-off.
- Every key performance indicator matches the source legacy number to the cent before cutover.
- One certified measure per key performance indicator in a governed semantic model.
- Legacy license decommissioned only after 30 days of green parallel runs.
Migration Readiness Assessment
Score your estate before you sign anything. Ten questions. Live answer.
Tick what you already have. The score updates live and the recommended migration path adapts. We auto-tick a typical mid-market estate every 4 seconds so you can watch the model think. Click any item to pause and score your own situation.
Source Platforms We Migrate From
Every legacy business intelligence tool, every Excel reporting stack, one destination.
Pick your source. Each migration page walks the exact path from your legacy tool to a governed Power BI estate, including the artefacts you keep, the ones you retire, and the parallel run window before cutover.
Tableau
Tableau to Power BI migration
Workbooks, calculated fields, row-level security, Server to Service.
Qlik
Qlik to Power BI migration
QVD, Sense apps, set analysis to DAX.
Cognos
Cognos to Power BI migration
Framework Manager, packages, report studio assets.
Looker Studio
Looker Studio to Power BI migration
Data Studio reports, GA4 and BigQuery sources.
Looker
Looker to Power BI migration
LookML to semantic model, explores to star schema.
MicroStrategy
MicroStrategy to Power BI migration
Metric and attribute conversion, intelligent cubes.
SAP BusinessObjects
SAP BusinessObjects to Power BI
Universe, Web Intelligence, Crystal Reports retirement.
SQL Server Reporting
Services
SQL Server Reporting Services to Power BI migration
Report definition language paginated reports rebuilt as Power BI paginated.
What Is Included in A Migration
Six deliverables. One reconciled Power BI estate. Nothing your team has to figure out alone.
Every Redefine migration ships these six artefacts. You sign off the inventory, the key performance indicator dictionary, and the final cutover. We do everything in between.
Deliverable 01:
Inventory
Full legacy report inventory with retire, rebuild, or replace verdict
We pull every report, every dashboard, every Excel file from your legacy estate. Each one gets one of three verdicts: retire because no one opens it, rebuild because it is business critical, or replace because there is a better Power BI native answer.
- Report owner, refresh cadence, last opened date
- Usage analytics over the last 12 months
- Migration priority and cost estimate per report
Deliverable 02:
Key Performance Indicator Dictionary
Signed key performance indicator dictionary: one formula per metric, agreed by finance
Before a single DAX measure is written we agree the formula. Gross margin includes which costs. Annual recurring revenue uses which contract dates. Days sales outstanding uses which accounts receivable bucket. One signed document. One source of truth.
- 30 to 60 key performance indicators per engagement
- Worked example for each formula
- Sign-off by finance, sales, and operations leads
Deliverable 03:
Semantic Model
Governed Power BI semantic model with certified DAX measures
Star schema. Conformed dimensions. Time intelligence built once and reused everywhere. Every DAX measure ships with a description, a unit, and a sign-off owner. The model is published as a certified dataset so every downstream report uses the same numbers.
- Tabular Editor and DAX Studio reviewed
- Calculation groups for time intelligence
- Endorsed and certified dataset workflow
Deliverable 04:
Parallel Run
Parallel run sheet: legacy and Power BI numbers reconciled to the cent
For 30 days before cutover we run both estates side by side. Every executive number on the Power BI report is matched to the legacy source. Variances over zero point one percent are investigated and signed off before we touch the legacy renewal.
- Daily reconciliation across all certified key performance indicators
- Variance log with root cause analysis
- Sign-off gate before legacy decommission
Deliverable 05:
Security Model
Row-level security tied to Azure Active Directory groups and audited
No more security through hidden tabs. Row-level security is enforced inside the semantic model and tied to your existing Azure Active Directory groups. Region managers see only their region. Legal entity heads see only their entity. Every rule documented and tested before cutover.
- Dynamic row-level security with USERPRINCIPALNAME()
- Test as role for every persona
- Audit log handed to information technology security
Deliverable 06:
Handover Pack
Handover pack and training so your team owns the estate
Migration is not done when reports go live. It is done when your team can maintain them. We hand over architecture diagrams, deployment pipelines, DAX measure documentation, and a 4-hour training session with the people who will own Power BI on day 30.
- Architecture and dataflow diagrams
- Deployment pipeline runbook
- 4-hour live training for internal owners
What you do not
have to do
Your team is freed from the work that wrecks migrations.
- Write DAX measures or rebuild legacy formulas in DAX
- Manually reconcile every line item across estates
- Build the data warehouse and conformed dimensions
- Configure gateway, capacity, and workspace structure
- Translate LookML, set analysis, or universe joins
- Author the parallel run reconciliation tooling
- Manage cutover communications and user training
- Negotiate legacy license decommissioning paperwork
Cost of Staying Versus Cost of Moving
Slide the inputs. See what your legacy estate costs you in a year.
The legacy license is the small number. The analyst hours, the rebuilt Excel sheets, and the delayed decisions are the large numbers. Move the sliders to your reality and we will show the full picture.
$180k
$40k$500k
22 hours
4
hours80 hours
$85/hour
$40/hour$200/hour
14
per month
060
Annual cost of staying
$0
License + analyst hours + Excel rebuild hours
Year one after Redefine migration
$0
Power BI license + 18 percent residual analyst time
Proof From A Recent Migration
Eight months on, the legacy renewal was cancelled
Who they are
A multi-site industrial components manufacturer running finance and operations reporting across two legacy business intelligence tools plus a heavy Excel layer used for the executive board pack every Monday.
Problem
Three concurrent legacy business intelligence licenses costing $184k a year, but the actual executive board pack was rebuilt manually in Excel every week because the legacy dashboards disagreed with the enterprise resource planning source numbers. Finance trusted only the manual spreadsheet. Operations leaders had stopped opening the dashboards entirely.
Solution and result
Inventory revealed 487 reports of which 312 had not been opened in 90 days. We rebuilt 175 onto a governed Power BI semantic model with one certified key performance indicator dictionary signed by finance, sales, and operations. Parallel run for 30 days delivered cent-perfect match against the enterprise resource planning system. Legacy renewal was cancelled in month eight.
Year one outcome
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Legacy license saving plus 22 hours per week analyst time returned to higher-value work.
Director of Finance
Mid-market industrial manufacturer, engagement closed 2025
“The parallel run is the thing. We did not cancel anything until thirty days of green matches were in. Then it was an easy email to procurement.”
Why Redefine Over The Default Partner Network
The same scope, priced and proved differently.
Most large Power BI partners price by report. We price by signed-off key performance indicator. Most partners cut over on a flag day. We run parallel for 30 days. Here is the line-by-line difference your procurement team will want.
Typical implementation partner
Redefine
Priced per report rebuilt. Incentive to migrate every legacy report, including the
312 nobody opens.
Priced per signed-off key performance indicator. You only pay for what gets
used.
Flag-day cutover. Legacy off, new live, fingers crossed by Monday.
30-day parallel run. Cutover only after green daily reconciliation.
DAX measures rewritten per report. Three definitions of gross margin in three
reports.
One certified semantic model, one DAX measure per key performance indicator, one
number.
Junior offshore developer pool. Senior architect on kick-off, nowhere by week
three.
Same senior data architect named on the statement of work is on every call through
cutover.
Handover is a wiki page. Your team owns it from cutover with no training.
4-hour live training, runbook, and 30 days of side-by-side hypercare.
No published case studies you can call. Reference deck only.
Three named reference clients in your sector willing to take your call.
Migration Questions, Answered Straight
The objections Chief Financial Officers raise before signing.
First parallel run Power BI report lives inside 2 weeks of sign-off. Full migration of a typical mid-market estate (200 to 500 legacy reports rationalised to 80 to 175 Power BI artefacts) takes 8 to 12 weeks including the 30-day parallel run window before legacy decommission.
This is the most common discovery. Variances over zero point one percent trigger a root cause investigation. About 40 percent of the time the legacy report is the wrong one, and finance has been quietly correcting it in Excel for years. We document the variance, agree the correct formula with finance, and lock it as the certified measure going forward.
No. The inventory step typically shows that 50 to 65 percent of legacy reports have not been opened in 90 days. Those get a retire verdict. We migrate the ones that earn it. You pay only for the certified key performance indicators that go into the production semantic model.
The 3 to 5 hours is a minimum for sign-off and validation. Below that, the migration risk goes up because no one is verifying the certified measures match how your finance team actually computes them. We can scope a heavier Redefine involvement (managed validation), but we will not migrate without an internal sign-off owner. That is the line.
Every artefact we ship is documented in plain language. The semantic model is built in standard Tabular Editor patterns. Deployment is via Power BI deployment pipelines. DAX measures have descriptions. The handover includes a 4-hour live training and 30 days of hypercare with your nominated internal owner. If you ever want to switch partners, every artefact transfers cleanly.
Yes. For estates with large source data volumes or multiple source systems, Fabric (lakehouse plus shortcuts plus Direct Lake mode) is the better destination. We will recommend Power BI Premium per User, Premium per Capacity, or Fabric based on your data volume, refresh patterns, and existing Azure footprint. The semantic model layer is the same in all three cases.
Quick Fit Check: Three Questions
Should you be migrating right now, or in six months?
Three questions. Pick the closest answer for each. The verdict updates live. We would rather tell you to wait six months than scope an engagement that fails.
Question 1 of 3
When does your legacy business intelligence license renew?
Question 2 of 3
Does finance trust the numbers in legacy dashboards today?
Question 3 of 3
Do you have an internal Power BI owner with calendar time?
Book Your Migration Assessment
Submit your report inventory. Get a scoped plan in 5 days.
A senior data architect reviews your situation, builds an inventory triage, and returns a fixed scope plan with timeline and cost in 5 business days. No commitment. No pitch.
Submit inventory › call within 48 hours › scoped plan in 5 days › first parallel run report inside 2 weeks of sign-off
Call within 48 hours
Scoped plan in 5 days
62 migrations shipped
100% parallel run match
What are you migrating from? (pick all that apply)
Brief received. A senior data architect will be in touch within 48 hours and your scoped migration plan will land in 5 business days.
No commitment. No pitch. We will tell you straight if Redefine is the wrong fit for your estate.
62 Reporting Estates Migrated
Parallel run. Reconciled to the cent. Zero downtime.
One certified key performance indicator dictionary. One governed semantic model. Legacy license cancelled only after 30 days of green parallel runs.
Submit inventory › call within 48 hours › scoped plan in 5 days › first parallel run inside 2 weeks