---
id: change/bcapps/10609
type: change
title: "#10609 [Master]-Inconsistent Validation of Non-Deductible VAT % for Purchase Lines Sharing the Same VAT Identifier- #10607"
summary: Fixes inconsistent validation of Non-Deductible VAT % on purchase lines that share the same VAT identifier. Two lines were removed from the Non-Ded. VAT Impl. codeunit, and tests were updated and added across the W1, AU, CZ, IT and RU layers.
tier: official
language: en
tags:
  - fix
  - main
  - bc30
  - codeunit non-ded. vat impl.
system: finance
review:
  state: reviewed
  by: opus
  at: "2026-10-08T02:06:58.087Z"
  flags: []
generated:
  at: "2026-10-08T01:26:53.141Z"
  pipeline: 0.2.0
  prompts:
    extract-change: 1
  input_hash: 20c3a9a592a2dc7de89d15b0e6739226ca23e562
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/pull/10609
    title: "microsoft/BCApps#10609: [Master]-Inconsistent Validation of Non-Deductible VAT % for Purchase Lines Sharing the Same VAT Identifier- #10607"
    date: "2026-09-01"
    commit: 20c3a9a592a2dc7de89d15b0e6739226ca23e562
    t: null
    quote: null
links:
  learn: []
  objects:
    - object/codeunit/6201
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
  changes: []
number: 10609
repo: microsoft/BCApps
source_id: bcapps-prs
url: https://github.com/microsoft/BCApps/pull/10609
kind: pr
base_branch: main
major: "30"
merged_at: "2026-09-01T05:59:49Z"
author: neeleshsinghal
author_type: User
community_contribution: false
labels:
  - "Team: Finance"
change_class: code
change_kind: fix
behavior_change: true
breaking: false
files:
  count: 10
  additions: 177
  deletions: 50
  al: 1
apps:
  - Base Application
objects_touched:
  - key: codeunit/6201
    page: codeunit/6201
    type: codeunit
    id: 6201
    name: Non-Ded. VAT Impl.
    app: Base Application
    status: modified
objects_unjoined: []
obsoletions: []
backports: []
fixes_issues: []
work_items:
  - 647365
systems:
  - finance
quote: null
joined_against:
  major: "30"
  commit: ecbc028c25dbe83b61313bc566e6c1d41184bb1c
---

# #10609 [Master]-Inconsistent Validation of Non-Deductible VAT % for Purchase Lines Sharing the Same VAT Identifier- #10607

> Fixes inconsistent validation of Non-Deductible VAT % on purchase lines that share the same VAT identifier. Two lines were removed from the Non-Ded. VAT Impl. codeunit, and tests were updated and added across the W1, AU, CZ, IT and RU layers.

[Pull request](https://github.com/microsoft/BCApps/pull/10609) · merged into `main` (BC30) on 2026-09-01 by neeleshsinghal · 10 files (+177 -50), 1 AL · fix · tier official · reviewed (checked by Opus)

## What changed

- Addresses inconsistent Non-Deductible VAT % validation for purchase lines with the same VAT identifier
- Small change in codeunit Non-Ded. VAT Impl. (2 lines removed)
- New unit tests in the W1 NonDeductibleUT codeunit and the CZ purchase posting tests
- Existing non-deductible VAT posting tests adjusted in several localization layers
- Behaviour changes for users or extensions.

## AL objects touched

- [Codeunit 6201 "Non-Ded. VAT Impl."](../../objects/codeunit/6201.md), Base Application: modified

## Context

- Work items: AB#647365
- Labels: Team: Finance
- Systems: finance

Source: metadata of a merged pull request in microsoft/BCApps (bcapps): title, labels, changed paths and counts, with a summary in our words. No source text and no description beyond one short quote (D10, D61).