🔍 Master Power BI | Understanding the Common Types of Errors in Power BI 🛠️💡

Even powerful tools like Power BI encounter errors. Here’s a quick guide to common error types, real examples, and smart solutions to keep your reports reliable and user-friendly.

1️⃣ Data Connectivity Errors 🌐🔑

📍 Example:
DataSource.Error: Cannot connect to server.
✅ Fix:

  • Verify credentials

  • Check network/firewall access

  • Confirm server availability

2️⃣ Power Query (M) Errors 🔁🧩

⚠️ Step-Level

📍 Example:
Expression.Error: Column 'Sales' not found
✅ Fix:

  • Ensure column exists

  • Review step order

❌ Cell-Level

📍 Example:
DataFormat.Error: "NA" can't convert to number
✅ Fix:
Use try...otherwise or Replace Errors

3️⃣ DAX Errors 🧠🧮

📍 Example:
A single value for 'Quantity' cannot be determined
✅ Fix:

  • Use SUM, MAX, etc.

  • Check row & filter context

4️⃣ Visualization Errors 📊🚫

📍 Example:
Can't display visual – unsupported data type
✅ Fix:

  • Check field types

  • Ensure all required fields are added

5️⃣ Refresh Errors 🔄💣

📍 Example:
Scheduled refresh failed – invalid credentials
✅ Fix:

  • Re-enter credentials

  • Review refresh logs

6️⃣ Service Errors ☁️🚧

📍 Example:
You do not have permission to publish
✅ Fix:

🧠 Best Practices 📌

  • 🔍 Monitor refresh logs regularly

  • 🧩 Use try...otherwise in Power Query

  • 🧾 Follow clear naming conventions

  • 📘 Document DAX & transformation logic

Stay alert, build smarter.
Fixing small errors = building bulletproof Power BI solutions. 💪

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