---
title: "Codeunit 9454 External File Storage"
author: "Jonas Paprotka"
url: https://jonas-paprotka.de/ref/codeunit/9454-external-file-storage/
type: codeunit
id: 9454
name: "External File Storage"
app: "System Application"
namespace: System.ExternalFileStorage
versions: "26-28"
build: 28.5.54151.54365
source: "https://jonas-paprotka.de/ref/codeunit/9454-external-file-storage/source/26/ https://jonas-paprotka.de/ref/codeunit/9454-external-file-storage/source/27/ https://jonas-paprotka.de/ref/codeunit/9454-external-file-storage/source/28/ https://jonas-paprotka.de/ref/codeunit/9454-external-file-storage/source/29/"
checked: 2026-09-20
subject: "Microsoft Dynamics 365 Business Central"
license: "Content © 2026 Jonas Paprotka. Quote freely with attribution and a link."
---

# Codeunit 9454 External File Storage

Jonas Paprotka, https://jonas-paprotka.de/ref/codeunit/9454-external-file-storage/

| | |
| --- | --- |
| App | System Application |
| Namespace | System.ExternalFileStorage |
| Versions | 26-28 |
| Source file | External File Storage/src/FileStorage/ExternalFileStorage.Codeunit.al |

## Procedures

| Name | Parameters | Returns | Access | Versions | Obsolete | Reason |
| --- | --- | --- | --- | --- | --- | --- |
| Initialize | (Enum File Scenario) | - | public | 26-28 | - | - |
| Initialize | (Record File Account) | - | public | 26-28 | - | - |
| ListFiles | (Text, Codeunit File Pagination Data, var Record File Account Content) | - | public | 26-28 | - | - |
| GetFile | (Text, InStream) | Boolean | public | 26-28 | - | - |
| CreateFile | (Text, InStream) | Boolean | public | 26-28 | - | - |
| CopyFile | (Text, Text) | Boolean | public | 26-28 | - | - |
| MoveFile | (Text, Text) | Boolean | public | 26-28 | - | - |
| FileExists | (Text) | Boolean | public | 26-28 | - | - |
| DeleteFile | (Text) | Boolean | public | 26-28 | - | - |
| ListDirectories | (Text, Codeunit File Pagination Data, var Record File Account Content) | Boolean | public | 26-28 | - | - |
| CreateDirectory | (Text) | Boolean | public | 26-28 | - | - |
| DirectoryExists | (Text) | Boolean | public | 26-28 | - | - |
| DeleteDirectory | (Text) | Boolean | public | 26-28 | - | - |
| CombinePath | (Text, Text) | Text | public | 26-28 | - | - |
| GetParentPath | (Text) | Text | public | 26-28 | - | - |
| SelectAndGetFolderPath | (Text) | Text | public | 26-28 | - | - |
| SelectAndGetFolderPath | (Text, Text) | Text | public | 26-28 | - | - |
| SelectAndGetFilePath | (Text, Text) | Text | public | 26-28 | - | - |
| SelectAndGetFilePath | (Text, Text, Text) | Text | public | 26-28 | - | - |
| SaveFile | (Text, Text) | Text | public | 26-28 | - | - |
| SaveFile | (Text, Text, Text) | Text | public | 26-28 | - | - |
| SaveFile | (Text, Text, Text, Text) | Text | public | 26-28 | - | - |
| BrowseAccount | () | - | public | 26-28 | - | - |

## Source

Symbols: Microsoft.SystemApplication.symbols.63ca2fa4-4f03-4f2b-a480-172fef340d3f, https://dynamicssmb2.pkgs.visualstudio.com/DynamicsBCPublicFeeds/_packaging/MSSymbols/nuget/v3/index.json, highest build per major on 2026-09-20.
AL source 26: https://github.com/microsoft/BCApps, MIT, releases/26.x at 78c4acf0d64a8eee157ea80164fa8fc2acffc9eb.
AL source 27: https://github.com/microsoft/BCApps, MIT, releases/27.x at 1749020b4c9445a43e4f7f540e89b7fa76ec25fd.
AL source 28: https://github.com/microsoft/BCApps, MIT, releases/28.x at 740f59156b249f8ed7cba2e28423f03ae7b07233.
AL source 29: https://github.com/microsoft/BCApps, MIT, releases/29.x at a66254c3b8b5bb1cea290dc8f9d097aec4381153.

Jonas Paprotka, 2026-09-20.