8 min read
Dual-Write Dropped My Field and Reported Success
Why a dual-write map can complete with zero errors while a custom F&O field never lands in Dataverse — staging tables, unpublished maps, and change tracking after a schema change.
The Augmented Dev334 posts · 7 themes
Notes from the edges of enterprise software.
Field-tested patterns, honest postmortems, and short tactical fixes on Claude, MCP, system design, Dynamics 365, and the modern web. Written for engineers who ship.
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71 posts
Dynamics 365
Guides and insights for Dynamics 365 Finance & Operations, Sales, Customer Service, and Copilot.
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49 posts
Power Platform
Tutorials and tips for Power Automate, PowerApps, and the broader Power Platform ecosystem.
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15 posts
Coding & System Design
System design, modern web development with Next.js, React, .NET, Azure, and practical coding guides.
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13 posts
Tech Stories & DevOps
DevOps practices, PowerShell tips, and stories from the trenches of enterprise tech.
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86 posts
System Design
Deep dives into designing scalable, reliable systems — URL shorteners, chat apps, rate limiters, caching, and more.
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13 posts
AI & Agents
Practical guides on Claude, the Model Context Protocol (MCP), agent architectures, prompt caching, and tool use in production.
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101 posts
Technical Interview
FAANG-style coding interview prep — real questions with Python solutions, organized by the nine patterns that cover most of what interviewers ask.
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Series
Power Automate gotchas
Nulls, blank dates, concurrency, duplicates, retries, and the trigger quirks that take production flows down.
28 articles
X++ performance
Indexes, set-based operations, temp tables, batch parallelism, and the Trace Parser habits that keep F&O jobs under an hour.
6 articles
Copilot in Dynamics 365
Grounding, plugins, MCP, and the production constraints of Copilot in Sales, Customer Service, and Finance.
8 articles
F&O and Dataverse integration
Dual-write, virtual entities, business events, DMF, and choosing an integration pattern that survives One Version.
11 articles
Recent writing
Latest posts
7 min read
OData 429s from F&O: What Actually Throttles You
HTTP 429 from Dynamics 365 Finance & Operations is usually the query shape, not the request count — cross-company scans, $filter that cannot seek, $batch that still burns SQL, and why retrying harder makes month-end worse.
4 min read
Clone Graph: Copy Nodes Without Falling Into the Cycle
Undirected graph deep copy with a hash map and BFS — the interview classic that checks whether you treat neighbors as pointers or as values.
4 min read
Designing Chat Presence: Online, Away, and the Lie of Instant Status
Heartbeat vs subscriptions, fan-out of presence, privacy, and why a boolean online flag does not survive a million concurrent sockets.
4 min read
GitHub Merge Queues: Serializing main Without Parking Every PR
How merge queues absorb the rebase race on protected branches, what CI has to guarantee, and when a queue is worse than Require branches to be up to date.
4 min read
MCP Resources vs Tools vs Prompts: Stop Putting Everything in a Tool
The three primitives in the Model Context Protocol, what the model actually sees, and a rule of thumb for Dataverse, files, and internal APIs.