---
id: object/codeunit/20345
type: object
title: Codeunit 20345 "Tax Posting Handler"
summary: Codeunit 20345 "Tax Posting Handler" in INTaxEngine (Microsoft.Finance.TaxEngine.PostingHandler). 1 public procedures, 10 event subscribers. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - intaxengine
versions:
  introduced: "29"
  last_changed: null
  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: 725ecb93317484e6747c929de704a2d7fdf844110f643612ab877cb32ef3d49d
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/INTaxEngine/app/TaxEngine-PostingHandler/src/PostingManagement/codeunit/TaxPostingHandler.Codeunit.al
    title: src/Apps/W1/INTaxEngine/app/TaxEngine-PostingHandler/src/PostingManagement/codeunit/TaxPostingHandler.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
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object_type: codeunit
object_id: 20345
name: Tax Posting Handler
namespace: Microsoft.Finance.TaxEngine.PostingHandler
app: INTaxEngine
extends: null
first_version: "29"
last_version: "30"
present_in:
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 13
  events: 0
  subscribers: 10
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 5
  called_by: 3
  implements: 0
---

# Codeunit 20345 "Tax Posting Handler"

> Codeunit 20345 "Tax Posting Handler" in INTaxEngine (Microsoft.Finance.TaxEngine.PostingHandler). 1 public procedures, 10 event subscribers. Introduced in BC29, still in BC30.

INTaxEngine · Microsoft.Finance.TaxEngine.PostingHandler · BC29-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/INTaxEngine/app/TaxEngine-PostingHandler/src/PostingManagement/codeunit/TaxPostingHandler.Codeunit.al) · facts from BC29

## Event subscriptions

- OnMappingAssitEdit subscribes to Page "Switch Statements" OnMappingAssitEdit
- OnSwitchCaseFormat subscribes to Page "Switch Statements" OnSwitchCaseFormat
- OnBeforeSwitchCaseDeleteEvent subscribes to Table "Switch Case" OnBeforeDeleteEvent
- OnInitScriptSymbols subscribes to Codeunit "Script Symbols Mgmt." OnInitScriptSymbols
- OnInitSymbols subscribes to Codeunit "Script Symbol Store" OnInitSymbols
- OnIsSourceTypeSymbolType subscribes to Page "Script Symbol Lookup Dialog" OnIsSourceTypeSymbolType
- OnGetLookupValue subscribes to Codeunit "Script Symbol Store" OnGetLookupValue
- OnBeforeDeleteTaxUseCase subscribes to Table "Tax Use Case" OnBeforeDeleteEvent
- OnAfterValidatePostingTableID subscribes to Table "Tax Use Case" OnAfterValidateEvent (Posting Table ID)
- OnAfterOpenPostingSetup subscribes to Codeunit "Use Case Mgmt." OnAfterOpenPostingSetup

## Procedures

- `GetCurrency(CurrencyCode: Code[10]; var Currency: Record Currency)`

Plus 2 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 20346 "Tax Posting Helper"](../codeunit/20346.md) (4 calls: `OnBeforeSwitchCaseDeleteEvent → DeleteInsertRecord`, `OnMappingAssitEdit → CreateInsertRecord`, `OnMappingAssitEdit → OpenInsertRecordDialog`, …)
- [Codeunit 20134 "Script Symbol Store"](../codeunit/20134.md) (3 calls: `InsertTaxPostingField → GetSymbolValue`, `InsertTaxPostingField → InsertSymbolValue`, `OnGetLookupValue → GetSymbolOfType`)
- [Codeunit 20141 "Lookup Entity Mgmt."](../codeunit/20141.md) (2 calls: `OnAfterValidatePostingTableID → DeleteTableFilters`, `OnBeforeDeleteTaxUseCase → DeleteTableFilters`)
- [Codeunit 20133 "Script Symbols Mgmt."](../codeunit/20133.md) (1 call: `OnInitScriptSymbols → InsertScriptSymbol`)
- [Page 20337 "Use Case Posting"](../page/20337.md) (1 call: `OnAfterOpenPostingSetup → (object)`)

## Called by

- [Codeunit 20335 "Purch.-Post Handler"](../codeunit/20335.md) (1 call: `OnBeforeInvoiceRoundingAmount → GetCurrency`)
- [Codeunit 20336 "Sales Posting Subscribers"](../codeunit/20336.md) (1 call: `OnBeforeInvoiceRoundingAmount → GetCurrency`)
- [Codeunit 20339 "Service Posting Subscribers"](../codeunit/20339.md) (1 call: `OnBeforeInvoiceRoundingAmount → GetCurrency`)

## Across versions

- Present in: BC29-30
- 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: "codeunit", object_name: "Tax Posting Handler")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.