---
id: object/codeunit/20293
type: object
title: Codeunit 20293 "Use Case Execution"
summary: Codeunit 20293 "Use Case Execution" in INTaxEngine (Microsoft.Finance.TaxEngine.UseCaseBuilder). 6 public procedures, 3 events. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - intaxengine
versions:
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  last_changed: null
  deprecated: null
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/INTaxEngine/app/TaxEngine-UseCaseBuilder/src/UseCase/codeunit/UseCaseExecution.Codeunit.al
    title: src/Apps/W1/INTaxEngine/app/TaxEngine-UseCaseBuilder/src/UseCase/codeunit/UseCaseExecution.Codeunit.al (releases/29.x)
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object_type: codeunit
object_id: 20293
name: Use Case Execution
namespace: Microsoft.Finance.TaxEngine.UseCaseBuilder
app: INTaxEngine
extends: null
first_version: "29"
last_version: "30"
present_in:
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  - "30"
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source_major: "29"
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  procedures: 26
  events: 3
  subscribers: 0
relations:
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  referenced_by: 0
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  event_subscribers: 3
  calls: 6
  called_by: 2
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---

# Codeunit 20293 "Use Case Execution"

> Codeunit 20293 "Use Case Execution" in INTaxEngine (Microsoft.Finance.TaxEngine.UseCaseBuilder). 6 public procedures, 3 events. 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/UseCase/codeunit/UseCaseExecution.Codeunit.al) · facts from BC29

## Events published

- `OnImportUseCaseOnDemand(TaxType: Code[20]; CaseID: Guid)` (integration)
  - subscribers: [Codeunit 20366 "Tax Engine Assisted Setup"](../codeunit/20366.md) OnImportUseCaseOnDemand
- `OnUpdateUseCaseRecord(TaxType: Code[20]; CaseID: Guid; MajorVersion: Integer; var UseCaseUpdated: Boolean)` (integration)
  - subscribers: [Codeunit 20366 "Tax Engine Assisted Setup"](../codeunit/20366.md) OnUpdateUseCaseRecord
- `OnUpdateTaxTypeRecord(TaxType: Code[20]; MajorVersion: Integer; var TaxTypeUpdated: Boolean)` (integration)
  - subscribers: [Codeunit 20366 "Tax Engine Assisted Setup"](../codeunit/20366.md) OnUpdateTaxTypeRecord

## Procedures

- `ExecuteUseCase(var UseCase: Record "Tax Use Case"; var SourceRecordRef: RecordRef; var Symbols: Record "Script Symbol Value" Temporary; CurrencyCode: Code[20]; CurrencyFactor: Decimal)`
- `ExecuteUseCaseWithRecord(var UseCase: Record "Tax Use Case"; var SourceRecord: Variant; var Symbols: Record "Script Symbol Value" Temporary; var PostingSetupRecID: RecordId; CurrencyCode: Code[20]; CurrencyFactor: Decimal)`
- `ExecuteUseCaseTree(UseCaseID: Guid; var CurrentRecord: Variant; var Symbols: Record "Script Symbol Value" temporary; var PostingSetupRecID: RecordId; CurrencyCode: Code[20]; CurrencyFactor: Decimal)`
- `IsLeafUseCase(UseCaseID: Guid): Boolean`
- `HandleEvent(EventName: Text; Record: Variant; CurrencyCode: Code[20]; CurrencyFactor: Decimal)`
- `ExecuteUseCaseTree(Record: Variant; CurrencyCode: Code[20]; CurrencyFactor: Decimal)`

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 20291 "Tax Rate Computation"](../codeunit/20291.md) (4 calls: `ExecuteUseCase → CalculateTaxComponent`, `ExecuteUseCase → GetTaxAttributes`, `ExecuteUseCase → GetTaxColumns`, …)
- [Codeunit 20134 "Script Symbol Store"](../codeunit/20134.md) (2 calls: `ExecuteUseCase → CopySymbols`, `ExecuteUseCase → InitSymbols`)
- [Codeunit 20131 "RecRef Handler"](../codeunit/20131.md) (1 call: `ExecuteUseCaseWithRecord → VariantToRecRef`)
- [Codeunit 20157 "Script Action Execution"](../codeunit/20157.md) (1 call: `ExecuteUseCase → ExecuteScript`)
- [Codeunit 20161 "Condition Mgmt."](../codeunit/20161.md) (1 call: `CanExecuteUseCase → CheckCondition`)
- [Codeunit 20236 "Transaction Value Helper"](../codeunit/20236.md) (1 call: `ExecuteUseCase → UpdateCaseID`)

## Called by

- [Codeunit 20286 "Use Case Event Handling"](../codeunit/20286.md) (4 calls: `BusinessRuleOnAfterUpdatePurchUnitPrice → HandleEvent`, `BusinessRuleOnAfterUpdateSalesLineAmountsDone → HandleEvent`, `OnAfterHandleBusinessUseCaseEvent → HandleEvent`, …)
- [Page 20310 "Use Cases"](../page/20310.md) (1 call: `FormatLine → IsLeafUseCase`)

## 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 Execution")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.