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Fotios Machairas
Business Application Expert


Ohi Day and Clean Monday! Do you use Dynamic or Static Tables for Business Holidays on BI Reports (Greek version)? 🤔
In a recent BI project, I was thinking about dynamic holiday dates 📅 , who updates static tables, and what’s a safe approach for storage and maintenance 🫣 ? A static table from 2020 to 2050 might work, but it’s not always practical. Creating something dynamic can take a bit more time ⏳ , but it provides a resilient solution 💪 for our clients. I finalised a Power Query solution for hashtag#Greek holidays that keeps hashtag#historical data minimal to 15 years while gener
Fotios Machairas
Jan 171 min read


Present Power BI Like a Pro in Under One Minute: The Simple Tricks Most People Miss
A few weeks ago, I was in a meeting with colleagues, clients, and a couple of executives. We were reviewing a Power BI dashboard, discussing KPIs and next steps. At some point, someone shared their screen — and the report appeared tiny, surrounded by menus, toolbars, panels, and browser chrome.Everyone leaned forward, squinting. Someone zoomed in. Someone else tried to drag the window wider.And then the comments started: “Can you make it a bit bigger?” “I can’t really see the
Fotios Machairas
Nov 23, 20252 min read


How to Access and Pin Power BI Apps in Microsoft Teams
If you're using Microsoft Teams and want quick access to your organization's Power BI dashboards, you're in luck. Microsoft Teams integrates seamlessly with Power BI, allowing you to view, manage, and pin your apps directly within the Teams interface. Here's a step-by-step guide to help you get started. Step 1: Open Microsoft Teams and Locate Power BI Launch your Microsoft Teams desktop or web app. Click on the ellipsis (three dots) in the left-hand navigation panel. In the s
Fotios Machairas
Nov 3, 20252 min read
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