---
id: object/codeunit/205
type: object
title: Codeunit 205 "Alt. Cust. VAT Reg. Doc. Impl."
summary: Codeunit 205 "Alt. Cust. VAT Reg. Doc. Impl." in Base Application (Microsoft.Finance.VAT.Registration). 7 public procedures, 2 event subscribers. Introduced in BC25, still in BC30, changed in BC26.
tier: official
language: en
tags:
  - codeunit
  - base application
versions:
  introduced: "25"
  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: 7e250161a80633ce5c741482690a41100c0079c8dd27ed5abe18b51c160f787d
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Finance/VAT/Registration/AltCustVATRegDocImpl.Codeunit.al
    title: src/Layers/W1/BaseApp/Finance/VAT/Registration/AltCustVATRegDocImpl.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
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  objects: []
  features: []
  topics: []
  localizations:
    - localization/be
  videos: []
  posts: []
  guidelines: []
object_type: codeunit
object_id: 205
name: Alt. Cust. VAT Reg. Doc. Impl.
namespace: Microsoft.Finance.VAT.Registration
app: Base Application
extends: null
first_version: "25"
last_version: "30"
present_in:
  - "25"
  - "26"
  - "27"
  - "28"
  - "29"
  - "30"
changed_in:
  - "26"
source_major: "29"
obsolete: null
countries:
  - be
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 26
  events: 0
  subscribers: 2
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 2
  called_by: 0
  implements: 1
---

# Codeunit 205 "Alt. Cust. VAT Reg. Doc. Impl."

> Codeunit 205 "Alt. Cust. VAT Reg. Doc. Impl." in Base Application (Microsoft.Finance.VAT.Registration). 7 public procedures, 2 event subscribers. Introduced in BC25, still in BC30, changed in BC26.

Base Application · Microsoft.Finance.VAT.Registration · BC25-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Finance/VAT/Registration/AltCustVATRegDocImpl.Codeunit.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Access | Internal |

## Event subscriptions

- AvoidDoubleConfirmationOnRecreateSalesLinesOnBeforeConfirm subscribes to Table "Sales Header" OnRecreateSalesLinesOnBeforeConfirm
- SetSalesLineRecreatedOnAfterRecreateSalesLines subscribes to Table "Sales Header" OnAfterRecreateSalesLines

## Procedures

- `Init(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header")`
- `CopyFromCustomer(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header")`
- `UpdateSetupOnShipToCountryChangeInSalesHeader(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header")`
- `UpdateSetupOnVATCountryChangeInSalesHeader(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header")`
- `UpdateSetupOnBillToCustomerChangeInSalesHeader(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header"; BillToCustomer: Record Customer)`
- `AddAltCustVATRegFromNotification(Notification: Notification)`
- `DisableAddAltCustVATRegNotification(Notification: Notification)`

Plus 17 local procedures.

## 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 200 "Alt. Cust. VAT. Reg. Facade"](../codeunit/200.md) (6 calls: `BuildFieldChangeBuffer → AddTempChangeLogEntryForAltCustVATRegChanges`, `GetAlternativeCustVATReg → GetAlternativeCustVATReg`, `UpdateAltCustVATRegInSalesHeader → CopyAltCustVATRegToSalesHeader`, …)
- [Codeunit 8703 "Feature Telemetry"](../codeunit/8703.md) (2 calls: `ConfirmChanges → LogUsage`, `UpdateAltCustVATRegInSalesHeader → LogUptake`)

## Implements

- [Interface "Alt. Cust. VAT Reg. Doc."](../interface/alt-cust-vat-reg-doc.md)

## Across versions

- Present in: BC25-30
- Changed (declaration) in: BC26

## Countries that replace it

[BE](../../localizations/be.md)

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: "codeunit", object_name: "Alt. Cust. VAT Reg. Doc. Impl.")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.