---
title: "Discussion on \"Chain of Command in D365 F&O: Extend, Do Not Overlayer\" | Hashnode"
description: "Discussion on \"Chain of Command in D365 F&O: Extend, Do Not Overlayer\". Overlayering is gone in Dynamics 365 Finance and Operations, so standard behavior is now extended with Chain of Command and event handlers. Here is how a working developer decides between the two and avoids the gotchas that silently break b"
url: "https://hashnode.com/posts/chain-of-command-in-d365-fo-extend-do-not-overlayer/6a538310c3e84d1bd98e96d2"
---

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# [Chain of Command in D365 F&O: Extend, Do Not Overlayer](https://sapotacorpvn.hashnode.dev/chain-of-command-in-d365-fo-extend-do-not-overlayer?utm_source=hashnode&utm_medium=feed)

Overlayering is gone in Dynamics 365 Finance and Operations, so standard behavior is now extended with Chain of Command and event handlers. Here is how a working developer decides between the two and avoids the gotchas that silently break b

Jul 12 · 7 min read · sapotacorpvn.hashnode.dev  
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