---
id: object/table/20306
type: object
title: Table 20306 "Tax Use Case"
summary: Table 20306 "Tax Use Case" in INTaxEngine (Microsoft.Finance.TaxEngine.UseCaseBuilder). 19 fields, 1 public procedures. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - table
  - 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: 1e9d15b613620ae6dfa4af0979cd7f1777fbbffce509f8386bacc333e7f30d16
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/INTaxEngine/app/TaxEngine-UseCaseBuilder/src/UseCase/Table/TaxUseCase.Table.al
    title: src/Apps/W1/INTaxEngine/app/TaxEngine-UseCaseBuilder/src/UseCase/Table/TaxUseCase.Table.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
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object_type: table
object_id: 20306
name: Tax Use Case
caption: Use Case
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: 19
  procedures: 10
  events: 0
  subscribers: 0
relations:
  out: 2
  referenced_by: 6
  pages: 6
  extended_by: 0
  event_subscribers: 5
  calls: 1
  called_by: 0
  implements: 0
---

# Table 20306 "Tax Use Case"

> Table 20306 "Tax Use Case" in INTaxEngine (Microsoft.Finance.TaxEngine.UseCaseBuilder). 19 fields, 1 public procedures. Introduced in BC29, still in BC30.

INTaxEngine · Microsoft.Finance.TaxEngine.UseCaseBuilder · captioned "Use Case" · BC29-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/INTaxEngine/app/TaxEngine-UseCaseBuilder/src/UseCase/Table/TaxUseCase.Table.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Caption | Use Case |
| Access | Public |
| Extensible | true |
| DataClassification | EndUserIdentifiableInformation |

## Fields

Explanation: the field's ToolTip in the code; without one, the ToolTip of a page control bound to the field (marked via the page); without that, its Caption (marked caption) when that differs from the name.

| No. | Name | Type | Explanation | Notes |
|---|---|---|---|---|
| 1 | ID | Guid | — | DataClassification SystemMetadata |
| 2 | Tax Table ID | Integer | — | DataClassification SystemMetadata |
| 4 | Description | Text[2000] | Specifies the description of the tax use case. <small>via [Page 20308 "Use Case Card"](../page/20308.md)</small> | DataClassification CustomerContent |
| 5 | Enable | Boolean | Specifies if tax use case is enabled for usage. <small>via [Page 20308 "Use Case Card"](../page/20308.md)</small> | DataClassification CustomerContent |
| 6 | Tax Type | Code[20] | Specifies the Tax Type of the use case. <small>via [Page 20299 "Use Case List"](../page/20299.md)</small> | TableRelation [Table 20258 "Tax Type"](../table/20258.md) ("Tax Type".Code) |
| 7 | Parent Use Case ID | Guid | — | TableRelation [Table 20306 "Tax Use Case"](../table/20306.md) ("Tax Use Case".ID); DataClassification SystemMetadata |
| 8 | Presentation Order | Integer | — | DataClassification SystemMetadata |
| 9 | Indentation Level | Integer | — | DataClassification SystemMetadata |
| 10 | Condition ID | Guid | — | DataClassification SystemMetadata |
| 16 | Computation Script ID | Guid | — | DataClassification SystemMetadata |
| 18 | Code | Code[20] | — | DataClassification SystemMetadata |
| 20 | Major Version | Integer | — | DataClassification SystemMetadata |
| 21 | Minor Version | Integer | — | DataClassification SystemMetadata |
| 22 | Effective From | DateTime | Specifies the effective date of the use case. <small>via [Page 20308 "Use Case Card"](../page/20308.md)</small> |  |
| 23 | Status | Enum "Use Case Status" | Specifies the effective date of the use case. <small>via [Page 20308 "Use Case Card"](../page/20308.md)</small> | enum [Enum 20286 "Use Case Status"](../enum/20286.md); DataClassification CustomerContent |
| 24 | Changed By | Text[80] | Specifies the changed by of the use case. <small>via [Page 20308 "Use Case Card"](../page/20308.md)</small> |  |
| 20335 | Posting Table ID | Integer | — | DataClassification SystemMetadata |
| 20336 | Posting Table Filter ID | Guid | — | DataClassification SystemMetadata |
| 20337 | Posting Script ID | Guid | — | DataClassification SystemMetadata |

## Keys

- PK: ID (clustered)
- PresentationOrder: Presentation Order
- Enable: Enable

## Trigger event subscribers

- OnAfterInsertEvent: [Codeunit 20297 "Use Case Symbols Handler"](../codeunit/20297.md) OnAfterInsertTaxUseCase
- OnAfterValidateEvent(Posting Table ID): [Codeunit 20345 "Tax Posting Handler"](../codeunit/20345.md) OnAfterValidatePostingTableID
- OnBeforeDeleteEvent: [Codeunit 20345 "Tax Posting Handler"](../codeunit/20345.md) OnBeforeDeleteTaxUseCase
- OnBeforeModifyEvent: [Codeunit 20292 "Use Case Entity Mgmt."](../codeunit/20292.md) OnBeforeModifyTaxUseCase
- OnBeforeValidateEvent(Status): [Codeunit 20365 "Use Case Archival Mgmt."](../codeunit/20365.md) OnAfterValidateEnableEvent

## Procedures

- `SkipTreeOnDelete(Skip: Boolean)`

Plus 9 local procedures.

## Triggers

OnInsert, OnDelete

## Relations

- Tax Type: TableRelation [Table 20258 "Tax Type"](../table/20258.md)
- Parent Use Case ID: TableRelation [Table 20306 "Tax Use Case"](../table/20306.md)

## Referenced by

6 fields in 6 objects relate to this table (TableRelation or CalcFormula).

- [Table 20285 "Tax Component Expression"](../table/20285.md): Case ID
- [Table 20287 "Tax Table Relation"](../table/20287.md): Case ID
- [Table 20306 "Tax Use Case"](../table/20306.md): Parent Use Case ID
- [Table 20308 "Use Case Component Calculation"](../table/20308.md): Case ID
- [Table 20309 "Use Case Rate Column Relation"](../table/20309.md): Case ID
- [Table 20338 "Tax Posting Setup"](../table/20338.md): Case ID

## Pages and codeunits on this table

- [Page 20292 "Available Use Case List"](../page/20292.md) (source table)
- [Page 20293 "Available Use Cases"](../page/20293.md) (source table)
- [Page 20299 "Use Case List"](../page/20299.md) (source table)
- [Page 20308 "Use Case Card"](../page/20308.md) (source table)
- [Page 20310 "Use Cases"](../page/20310.md) (source table)
- [Page 20337 "Use Case Posting"](../page/20337.md) (source table)

## 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 20166 "Script Entity Mgmt."](../codeunit/20166.md) (2 calls: `DeleteUseCaseCondition → DeleteCondition`, `OnInsert → CreateScriptContext`)

## 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: "table", object_name: "Tax Use Case")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.