---
id: object/page/2510
type: object
title: Page 2510 "Marketplace Extn Deployment"
summary: Page 2510 "Marketplace Extn Deployment" in System Application (System.Apps). 4 public procedures. Present since at least BC23, still in BC30, changed in BC26.
tier: official
language: en
tags:
  - page
  - system application
versions:
  introduced: null
  last_changed: "26"
  deprecated: null
review:
  state: derived
  by: null
  at: null
  flags: []
generated:
  at: "2026-10-11T00:31:51.816Z"
  pipeline: 0.2.0
  prompts: {}
  input_hash: 235d4c52d1f8fd895947c217879dbb40c7300add9cea44a96f0d179835183e6d
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/System%20Application/App/Extension%20Management/src/MarketplaceExtnDeployment.Page.al
    title: src/System Application/App/Extension Management/src/MarketplaceExtnDeployment.Page.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
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  posts: []
  guidelines: []
  changes:
    - change/bcapps/9953
object_type: page
object_id: 2510
name: Marketplace Extn Deployment
caption: Install extension
namespace: System.Apps
app: System Application
extends: null
first_version: "23"
last_version: "30"
present_in:
  - "23"
  - "24"
  - "25"
  - "26"
  - "27"
  - "28"
  - "29"
  - "30"
changed_in:
  - "26"
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 4
  events: 0
  subscribers: 0
  controls: 11
  actions: 3
relations:
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  referenced_by: 0
  pages: 0
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  calls: 2
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  implements: 0
---

# Page 2510 "Marketplace Extn Deployment"

> Page 2510 "Marketplace Extn Deployment" in System Application (System.Apps). 4 public procedures. Present since at least BC23, still in BC30, changed in BC26.

System Application · System.Apps · captioned "Install extension" · BC23-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/System%20Application/App/Extension%20Management/src/MarketplaceExtnDeployment.Page.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Caption | Install extension |
| Extensible | false |
| PageType | NavigatePage |
| ApplicationArea | All |

## Fields on this page

Layout controls in source order, grouped by the container they sit in. Shows: the table field a control is bound to (or its expression as written); ToolTip: the control's own, else the bound field's (marked).

| Group | Control | Shows | ToolTip |
|---|---|---|---|
| DisclaimerHeader | DisclaimerText | `DisclaimerLbl` | Third-party extension disclaimer. |
|  | LearnMoreCompliance | `LearnMoreComplianceLbl` | Learn what to consider when installing third-party apps. |
|  | LearnMoreInstalling | `LearnMoreInstallingLbl` | Learn more about installing/uninstalling apps. |
| InstallationStep | ActiveUsers | `ActiveUsersLbl` | There might be other users working in the system. |
|  | Warning | `WarningLbl` | Installing extensions during business hours will disrupt other users. |
|  | RefreshInfo | `RefreshInfoLbl` | After installation, your session will refresh, and you can set up your extension. |
|  | PreviewInfo | `PreviewInfoLbl` | You are about to install a preview version of the extension. |
|  | ImportantInfo | `ImportantInfoLbl` | — |
|  | ImportantDisclaimer | `ImportantDisclaimerLbl` | Installing applications may require dependencies to be installed. |
|  | HelpLink | `InstallAppsURLLbl` | Read more about installing and uninstalling apps. |
|  | Language | `LanguageName` | Specifies the language of the extension. |

## Actions

| Group | Action | ToolTip | Runs |
|---|---|---|---|
| Processing | Back | Go back to the previous step. |  |
|  | Continue | Continue to the next step. |  |
|  | Install | Install the extension. |  |

## Procedures

- `GetLanguageId(): Integer` (internal)
- `GetInstalledSelected(): Boolean` (internal)
- `SetAppID(ID: Guid)` (internal)
- `SetPreviewKey(PreviewKey: Text[2048])` (internal)

## Triggers

OnInit, OnOpenPage

## Calls

From the extracted call graph of BC29 (graphify-al on the snapshot checkout): calls whose target is known from a declared type or an `Object::"Name"` argument. Interface dispatch and calls through events are not counted, so the list is not complete.

- [Codeunit 2505 "Data Out Of Geo. App Impl."](../codeunit/2505.md) (1 call: `OnOpenPage → CheckAndFireNotification`)
- [Codeunit 43 "Language"](../codeunit/43.md) (1 call: `OnInit → GetWindowsLanguageName`)

## Recent changes

- 2026-10-05 [#9953 Rename AppSource UI text to Marketplace](../../changes/bcapps/9953.md) (main, BC30, other)

## Across versions

- Present in: BC23-30
- Changed (declaration) in: BC26

Source: AL metadata extracted from the code (names, ids, signatures, properties); no code bodies (D10).

## Ask your agent

Procedure bodies are not stored here (D10). The call sections above are our own, per object, from the BC29 call graph. For a procedure body or the calls of one procedure, ask bc-code-atlas (external, by Stefan Maron, MIT; default corpus w1-28), which the bc-observatory plugin connects: `bcatlas_resolve_node(object_type: "page", object_name: "Marketplace Extn Deployment")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.