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title: "BC Friday Tips #66 API v2 app"
summary: The Exclude_APIV2 app is a hidden Microsoft extension in Business Central that contains standard API V2 objects. Developers can explore this app via symbol files in VS Code to understand Microsoft's API design patterns and reference it when building or extending their own APIs.
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    quote: This app contains the standard API V2 objects used by Business Central.
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post_id: https://thatnavguy.com/blog/2026/bc-friday-tips-66-api-v2-app/
source_id: thatnavguy-com
source_name: That NAV Guy
url: https://thatnavguy.com/blog/2026/bc-friday-tips-66-api-v2-app/
published_at: "2026-03-06T00:00:00.000Z"
author: Teddy Herryanto
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words: 101
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  - text: This app contains the standard API V2 objects used by Business Central.
    why_it_matters: Identifies the purpose of the hidden extension and what developers can access through it
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# BC Friday Tips #66 API v2 app

[Read the post](https://thatnavguy.com/blog/2026/bc-friday-tips-66-api-v2-app/) · That NAV Guy (Teddy Herryanto, MVP) · 2026-03-06 · 101 words · tier community · reviewed (checked by Opus)

> The Exclude_APIV2 app is a hidden Microsoft extension in Business Central that contains standard API V2 objects. Developers can explore this app via symbol files in VS Code to understand Microsoft's API design patterns and reference it when building or extending their own APIs.

## Key points

- Business Central ships hidden Microsoft extensions, for example the Exclude_APIV2 app
- The app holds the standard API V2 objects used by Business Central
- Download the symbols and you can browse the app in VS Code
- Use it to see how Microsoft designs standard APIs and copy objects you need to extend
- It also works as a reference when you build your own APIs

## Quotes

- "This app contains the standard API V2 objects used by Business Central." (Identifies the purpose of the hidden extension and what developers can access through it)

## Context

- Features: API V2 objects, Standard APIs, API design patterns, VS Code exploration, Symbol files

Source: That NAV Guy, community blog. Summary, key points and quotes are derived (CONTENT-NOTICE.md); read the original for the full text.