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Power BI problems — answered in plain language
Start with the pain-point guides: what broke, why it broke, how to fix it, and when to stop guessing. Then go deeper in the full article library.
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What these guides cover
Each guide is built the same way: direct answer, symptoms, causes, fix steps, prevention, and when to get help.
Pain-point guides
Optimized for clear answers and practical next steps — not a wall of jargon.
Power BI Refresh Failing? Here's How to Fix It
Power BI refresh failing is usually caused by expired credentials, an offline on-premises gateway, query timeouts, or a source schema change. Check gateway status and credentials first, then open the refresh history for the exact error, fix the failing query or source permission, and republish. Persistent failures need model and gateway architecture review.
- Refresh history shows Failed right before the meeting.
- It worked yesterday; nothing “changed” (someone rotated a password).
Power BI Report Running Slow — Causes & Fixes
A Power BI report running slow usually comes from too many visuals, inefficient DAX, a large imported model, or bidirectional relationships. Reduce visual density, replace heavy measures, review the model size in DAX Studio or VertiPaq Analyzer, and simplify relationships. If pages still lag after basic cleanup, the semantic model needs redesign.
- Slicers take seconds; pages feel stuck.
- One page is fine; another with more charts crawls.
Power BI Data Model Optimization: A Practical Guide
Power BI data model optimization starts by removing unused columns, reducing high-cardinality text fields, star-scheming facts and dimensions, and pushing transformations upstream. Then review relationships, measure complexity, and refresh design. A lean model refreshes faster, responds quicker, and is easier to govern across teams.
- Refresh takes hours and keeps growing.
- Nobody knows which columns the reports actually use.
Migrate Excel to Power BI — Step-by-Step
To migrate Excel to Power BI successfully, inventory the workbooks, extract the real KPI definitions, connect to systems of record where possible, rebuild transformations in Power Query, and create a governed semantic model before designing pages. Do not paste spreadsheets into Power BI and call it done—redesign ownership, refresh, and security with the migration.
- Broken links and #REF! before every close.
- Two people “fixed” the file and created two truths.
Power BI Row-Level Security Setup Explained
Power BI row-level security setup works by defining roles with DAX filters, publishing the model, and assigning users or groups to those roles in the service. Test with “View as” before go-live. Failures usually come from mismatched keys, missing group assignments, or filters that conflict with bidirectional relationships.
- Someone sees another region’s numbers.
- A user gets a blank report after login.
Connect Power BI to SQL Server — Practical Guide
To connect Power BI to SQL Server, choose Import or DirectQuery, configure a least-privilege SQL login or Azure AD identity, and use an on-premises data gateway when the database is not publicly reachable. Then build a star schema view layer for reporting. Most connection failures are authentication, firewall, or gateway configuration—not Power BI itself.
- Desktop connects; the service cannot refresh.
- Order entry slows when the dashboard opens.
Deeper practice articles
From the resources library — gateway, DAX, Excel migration, and delivery patterns with more practitioner detail.
Power BI Logistics Dashboard: KPIs and Build Guide
A practical build guide for a Power BI logistics dashboard: which KPIs belong on the first page, which visuals actually get used, and the modeling mistakes that make OTIF untrustworthy.
Power BI Supply Chain Analytics: Inventory and Demand
Supply chain visibility is not the same as a transport control tower. This guide covers inventory positions, demand vs plan, and multi-tier supplier data in Power BI.
Power BI Row-Level Security: A Definitive Guide
The working guide for Power BI row-level security: how roles actually filter, how to map Entra groups, how to test, and why Desktop success is not production success.
Excel-to-Power BI cutover checklist that survives the first month-end
A Desktop demo is not cutover. Inventory, dual-run, then freeze the old pack — in that order.
Stop every analyst inventing a different YTD — govern measures like code
Certified datasets rot when YTD is redefined per report. Put measures under ownership, folders, and peer review.
Power Query habits that quietly destroy your model size and refresh
If View Native Query is gray, you already lost. Fold early, expand late, type once.
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