The Library · Insights
Deep dives across data, automation & AI
1253 in-depth articles — from Excel foundations to production machine learning. Filter by topic or difficulty to find exactly what you need.
Power AutomatePractitioner
Implementing Power Automate HTTP Request Throttling and Backpressure Signals with Azure API Management
Learn how to detect 429 responses, parse Retry-After headers, and build a dynamic throughput control loop in Power Automate that respects API rate limits at enterprise scale. Stop letting blind retries hammer your API quota — learn to make your flows actually listen to backpressure signals.
21 min read
Power AppsPractitioner
Configuring Model-Driven App Embedded Canvas App Custom Pages: Passing Record Context, Handling Navigation, and Surfacing Dataverse Data Within Model-Driven Forms
Learn how to embed a custom page inside a model-driven form, pass the host record's ID as context, surface related Dataverse data using Power Fx, and wire navigation so users stay inside the model-driven shell. A complete, production-ready walkthrough with a hands-on client dashboard exercise.
22 min read
SQLFoundation
Writing SQL Aggregate Expressions Without GROUP BY: Using COUNT, SUM, and AVG Across an Entire Result Set
Learn how to use COUNT, SUM, and AVG to summarize an entire dataset in a single SQL query — no GROUP BY required. This lesson covers NULL behavior, combining multiple aggregates, and practical business reporting patterns from first principles.
16 min read
Microsoft ExcelFoundation
VBA Workbook and Worksheet Object Events: Writing Your First Event-Driven Macros to Automate Responses to User Actions
Stop writing macros you have to run manually. Learn how to write VBA event handlers that trigger automatically when users open workbooks, change cells, switch sheets, or try to save — turning your spreadsheets into intelligent, reactive applications.
18 min read
Microsoft ExcelFoundation
Workbook Navigation and Data Entry Shortcuts: Move, Select, and Edit Cells Efficiently in Excel
Clicking around with the mouse is slowing you down more than you realize. This lesson teaches you the keyboard shortcuts, selection techniques, and editing habits that let you move through any Excel workbook with speed and precision — skills that compound with every other thing you do in Excel.
17 min read
Power AutomatePractitioner
Routing Approval Requests to the Right People with Power Automate: Dynamic Approver Lists, Manager Lookup, and Conditional Assignment
Stop hardcoding approvers in your Power Automate flows. Learn how to route approval requests dynamically using Azure AD manager lookup, SharePoint configuration tables, and conditional logic based on form input and dollar thresholds — all in one maintainable flow.
22 min read
Power AutomateFoundation
Establishing Power Automate DLP Policy Tiers: Mapping Connector Risk Classifications to Environment Types for Governed Enterprise Rollout
Most Power Platform data incidents don't start with malicious intent — they start with a flow that connects the wrong two systems. Learn how to design a tiered DLP policy framework that maps connector risk classifications to environment types, giving makers the freedom to build while keeping sensitive data protected in production.
18 min read
Power AppsExpert
Configuring Dataverse Solution Segmentation and Component Dependencies: Splitting Model-Driven App Customizations Across Multiple Solutions for Modular ALM and Safe Deployment
Monolithic Power Platform solutions create fragile, risky deployments — but splitting customizations across solutions requires understanding how Dataverse tracks component ownership, resolves layer conflicts, and enforces dependencies. This deep-dive lesson teaches you how to design a layered solution architecture, manage cross-solution dependencies safely, and build an ALM pipeline where teams can ship independently without stepping on each other.
29 min read
SQLExpert
Querying Hierarchical Data Without Recursion: Using Self-Joins and Subqueries to Traverse Parent-Child Relationships
Most tutorials jump straight to recursive CTEs for hierarchical data — but expert SQL practitioners know there's a richer toolkit. This lesson teaches you to traverse org charts, category trees, and bill-of-materials structures using self-joins, correlated subqueries, and alternative storage models, with full indexing and performance guidance.
26 min read
Microsoft ExcelExpert
Building a VBA-Powered Custom Function Library: Package, Protect, and Distribute Reusable XLAM Add-In Functions Across Enterprise Workbooks
Learn how to build a production-ready Excel XLAM add-in that packages reusable VBA custom functions, protects your code, and deploys seamlessly across every workbook in your organization. This expert-level lesson covers architecture, UDF design, digital signing, enterprise deployment strategies, and version management.
30 min read
Microsoft ExcelExpert
Mastering Excel's Consolidate Tool: Combine Data from Multiple Sheets and Workbooks into a Single Summary
Excel's Consolidate tool is one of the most powerful and underused features for aggregating parallel data from multiple sheets and external workbooks. This expert-level lesson covers by-position and by-category consolidation, live link management, external workbook references, and the critical trade-offs between Consolidate, PivotTables, SUMIFS, and Power Query.
29 min read
Power AutomateExpert
Automating Multi-Approver Sign-Off with Reassignment and Delegation in Power Automate: Handling Out-of-Office Scenarios, Proxy Approvers, and Fallback Routing Without Losing Request Context
Most approval flows assume every approver is always available — and they break the moment someone goes on vacation. This lesson teaches you to build multi-approver chains that automatically detect out-of-office status, route to configured delegates, escalate to managers, and preserve complete request context across every hop.
26 min read