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content/docs/BestPractices/variables-declarations-order/index.md

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+---
+title: "Variables Declarations Order"
+tags: ["Readability"]
+categories: ["Best Practice"]
+---
+
+_Created by Microsoft, Described by waldo_
+
+## Description
+Variables declarations should be ordered by type. In general, object and complex variable types are listed first followed by simple variables. The order should be:
+
+- Record
+- Report
+- Codeunit
+- XmlPort
+- Page
+- Query
+- Notification
+- BigText
+- DateFormula
+- RecordId
+- RecordRef
+- FieldRef
+- FilterPageBuilder
+
+(Ref: [Microsoft Docs](https://docs.microsoft.com/en-us/dynamics365/business-central/dev-itpro/developer/analyzers/codecop-aa0021))
+
+
+## Bad code
+
+```al
+    StartingDateFilter: Text;
+    Vendor: Record Vendor;
+```
+
+## Good code
+
+```al
+    Vendor: Record Vendor;
+    StartingDateFilter: Text;
+```
+
+## [Discussions](https://github.com/microsoft/alguidelines/discussions/categories/bc-best-practices?discussions_q=one+variables+declarations+order+category%3A%22BC+Best+Practices%22)
+
+You can find discussions on all "Best Practices" [here](https://github.com/microsoft/alguidelines/discussions/categories/bc-best-practices).
+
+If you don't find the discussion of this guideline, please feel free to create a new one with the same title as this article.