Why Power Platform Is Your Real Automation Layer — Not Custom Code
Every new automation request in Microsoft Dynamics 365 seems to become a development ticket. A new approval path, Teams notification, reminder, document-generation process, or integration enters a backlog while the business waits for an available developer.
In this episode of M365 FM, Mirko Peters challenges that traditional model and explains why Microsoft Power Platform should become the visible automation layer between Dynamics 365, Dataverse, people, decisions, and connected business systems.
This is not an argument against custom code. It is a practical framework for understanding where Power Automate, Power Apps, Power Fx, Dataverse, solutions, environment variables, security, and governance belong—and where professional development remains the correct architectural choice.
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THE AUTOMATION ASSUMPTION IS BROKEN
Many Dynamics environments begin every process request with the same question: where should we write the code?
That question narrows the architecture before the team understands what changed in the business, which decision must be made, who needs to respond, which systems need information, and who owns the process after deployment.
Power Platform should sit between a Dynamics event and the surrounding business outcome. It can interpret signals, apply visible rules, coordinate human decisions, connect services, and record what happened. Custom code remains valuable, but it should not automatically own every process change.
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THE OLD DYNAMICS CUSTOMIZATION MODEL
In the traditional model, every difference between the standard Dynamics application and the business process becomes another customization.
A developer creates a Dataverse plug-in, attaches JavaScript to a form, builds a custom workflow activity, adds a scheduled job, or creates another integration service. Each individual feature may work correctly, but the complete process gradually becomes distributed across assemblies, scripts, workflows, APIs, configuration values, and specialist knowledge.
The process owner understands the policy but cannot inspect the technical behavior. The developer understands the implementation but may not own the business decision. Support becomes responsible when something fails, even though it may not know which component triggered the outcome.
This creates delivery control without creating true process ownership.
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THE HIDDEN COST OF CUSTOM AUTOMATION
The initial development cost is visible because it appears in estimates, project budgets, and delivery reports. The long-term operating cost is distributed across support tickets, testing cycles, incident investigation, documentation updates, platform upgrades, and the time required to locate old business rules.
A small policy change can become a multi-day development task when a threshold is hidden inside code. Someone must find the relevant implementation, identify the production version, change it, test related behavior, deploy it correctly, and confirm that nothing else relies on the same value.
The business may conclude that Dynamics is slow to change. In reality, the automation model is creating the delay.
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WHY DOCUMENTATION AND SUPPORT OFTEN FAIL
Documentation usually describes the process as it existed when the solution launched. The business then changes, developers update the implementation, and the original documents slowly become unreliable.
Eventually, the code describes the current system behavior while the documentation describes an older version of the business. Neither gives process owners a clear and trustworthy answer.
Support teams feel this problem when a record changes unexpectedly or a notification fails. They can see that something happened, but they may not know whether the cause was a plug-in, JavaScript, a classic workflow, Power Automate, or an external integration.
The real escalation path becomes finding the person who remembers the automation. When that person leaves, the organization loses more than technical capacity—it loses the map.
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CUSTOM CODE IS NOT THE ENEMY
Custom code still belongs in Dynamics and Power Platform architecture. Some requirements must execute inside the Dataverse transaction before a record is accepted.
A plug-in may be the correct choice when a rule must prevent invalid data from being saved, perform a controlled calculation, support a performance-sensitive operation, or guarantee consistent server-side behavior regardless of how the data enters Dataverse.
Code also remains appropriate for reusable software components, specialist integrations, PCF controls, custom connectors, products, and technical services with their own lifecycle and interface contracts.
The important principle is to keep the code boundary narrow. A plug-in should validate one rule, calculate one result, or perform one controlled operation. It should not quietly become responsible for approvals, reminders, documents, escalations, and several external systems.
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