---
id: object/codeunit/20286
type: object
title: Codeunit 20286 "Use Case Event Handling"
summary: Codeunit 20286 "Use Case Event Handling" in INTaxEngine (Microsoft.Finance.TaxEngine.UseCaseBuilder). 3 events, 7 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
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  input_hash: c2eb45c9aa3af6d9ee8d277e7977e71350edd973efbe3461ea1becff7eff303e
evidence:
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/INTaxEngine/app/TaxEngine-UseCaseBuilder/src/Events/codeunit/UseCaseEventHandling.Codeunit.al
    title: src/Apps/W1/INTaxEngine/app/TaxEngine-UseCaseBuilder/src/Events/codeunit/UseCaseEventHandling.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
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object_type: codeunit
object_id: 20286
name: Use Case Event Handling
namespace: Microsoft.Finance.TaxEngine.UseCaseBuilder
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: 12
  events: 3
  subscribers: 7
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 1
  called_by: 0
  implements: 0
---

# Codeunit 20286 "Use Case Event Handling"

> Codeunit 20286 "Use Case Event Handling" in INTaxEngine (Microsoft.Finance.TaxEngine.UseCaseBuilder). 3 events, 7 event subscribers. Introduced in BC29, still in BC30.

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

## Events published

- `OnBeforeGenJnlLineUseCaseHandleEvent(var Rec: Record "Gen. Journal Line"; var xRec: Record "Gen. Journal Line"; var IsHandled: Boolean)` (integration)
- `OnBeforeSalesUseCaseHandleEvent(var SalesLine: Record "Sales Line"; var xSalesLine: Record "Sales Line"; var IsHandled: Boolean)` (integration)
- `OnBeforePurchaseUseCaseHandleEvent(var PurchLine: Record "Purchase Line"; var xPurchLine: Record "Purchase Line"; var IsHandled: Boolean)` (integration)

## Event subscriptions

- OnAfterHandleBusinessUseCaseEvent subscribes to Codeunit "Use Case Event Library" OnAfterHandleBusinessUseCaseEvent
- BusinessRuleOnAfterUpdateSalesLineAmountsDone subscribes to Table "Sales Line" OnAfterUpdateAmountsDone
- BusinessRuleOnAfterUpdatePurchUnitPrice subscribes to Table "Purchase Line" OnAfterUpdateAmountsDone
- BusinessRuleOnAfterRename subscribes to Codeunit "GlobalTriggerManagement" OnAfterOnDatabaseRename
- BusinessRuleOnAfterDelete subscribes to Codeunit "GlobalTriggerManagement" OnAfterOnDatabaseDelete
- OnAfterGetDatabaseTableTriggerSetup subscribes to Codeunit "GlobalTriggerManagement" OnAfterGetDatabaseTableTriggerSetup
- OnAfterPostGenJnlLine subscribes to Table "Gen. Journal Line" OnAfterValidateEvent (Amount)

## Procedures

2 local procedures, no public ones.

## 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 20293 "Use Case Execution"](../codeunit/20293.md) (4 calls: `BusinessRuleOnAfterUpdatePurchUnitPrice → HandleEvent`, `BusinessRuleOnAfterUpdateSalesLineAmountsDone → HandleEvent`, `OnAfterHandleBusinessUseCaseEvent → HandleEvent`, …)

## 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: "Use Case Event Handling")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.