---
id: object/interface/alt-cust-vat-reg-doc
type: object
title: Interface "Alt. Cust. VAT Reg. Doc."
summary: Interface "Alt. Cust. VAT Reg. Doc." in Base Application (Microsoft.Finance.VAT.Registration). 5 public procedures. Introduced in BC25, still in BC30.
tier: official
language: en
tags:
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  - base application
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Finance/VAT/Registration/AltCustVATRegDoc.Interface.al
    title: src/Layers/W1/BaseApp/Finance/VAT/Registration/AltCustVATRegDoc.Interface.al (releases/29.x)
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object_type: interface
object_id: null
name: Alt. Cust. VAT Reg. Doc.
namespace: Microsoft.Finance.VAT.Registration
app: Base Application
extends: null
first_version: "25"
last_version: "30"
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---

# Interface "Alt. Cust. VAT Reg. Doc."

> Interface "Alt. Cust. VAT Reg. Doc." in Base Application (Microsoft.Finance.VAT.Registration). 5 public procedures. Introduced in BC25, still in BC30.

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/AltCustVATRegDoc.Interface.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Access | Public |

## Procedures

- `Init(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header")`: Initializes the VAT registration data taken from the alternative customer registration in the sales header.
- `CopyFromCustomer(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header")`: Copies the VAT registration data from the customer to the sales header.
- `UpdateSetupOnShipToCountryChangeInSalesHeader(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header")`: Updates the VAT registration data when the Ship-to Country/Region Code is changed in the sales header.
- `UpdateSetupOnVATCountryChangeInSalesHeader(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header")`: Updates the VAT registration data when the VAT Country/Region Code is changed in the sales header.
- `UpdateSetupOnBillToCustomerChangeInSalesHeader(var SalesHeader: Record "Sales Header"; xSalesHeader: Record "Sales Header"; BillToCustomer: Record Customer)`: Updates the VAT registration data when the Bill-to Customer is changed in the sales header.

## Implemented by

- [Codeunit 205 "Alt. Cust. VAT Reg. Doc. Impl."](../codeunit/205.md)
- [Enum 205 "Alt. Cust VAT Reg. Doc."](../enum/205.md)

## Across versions

- Present in: BC25-30
- Changed (declaration) in: none

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