---
id: object/codeunit/5455
type: object
title: Codeunit 5455 "Supply What-If Planning Engine"
summary: Codeunit 5455 "Supply What-If Planning Engine" in Base Application (Microsoft.Inventory.Planning). 5 public procedures, 6 events. Introduced in BC30.
tier: official
language: en
tags:
  - codeunit
  - base application
versions:
  introduced: "30"
  last_changed: null
  deprecated: null
review:
  state: derived
  by: null
  at: null
  flags: []
generated:
  at: "2026-10-07T23:32:29.863Z"
  pipeline: 0.2.0
  prompts: {}
  input_hash: 70572becfb8e640bcdfaad073b2bb01da9424d98abea6e29016422829902a06b
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/f18567dc08e2bd162bf192e1da4d714b57eb099f/src/Layers/W1/BaseApp/Inventory/Planning/WhatIfPlanning/SupplyWhatIfPlanningEngine.Codeunit.al
    title: src/Layers/W1/BaseApp/Inventory/Planning/WhatIfPlanning/SupplyWhatIfPlanningEngine.Codeunit.al (main)
    date: null
    commit: f18567dc08e2bd162bf192e1da4d714b57eb099f
    t: null
    quote: null
links:
  learn: []
  objects: []
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
  changes:
    - change/bcapps/9196
object_type: codeunit
object_id: 5455
name: Supply What-If Planning Engine
namespace: Microsoft.Inventory.Planning
app: Base Application
extends: null
first_version: "30"
last_version: "30"
present_in:
  - "30"
changed_in: []
source_major: "30"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 21
  events: 6
  subscribers: 0
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 6
  calls: 0
  called_by: 0
  implements: 0
---

# Codeunit 5455 "Supply What-If Planning Engine"

> Codeunit 5455 "Supply What-If Planning Engine" in Base Application (Microsoft.Inventory.Planning). 5 public procedures, 6 events. Introduced in BC30.

Base Application · Microsoft.Inventory.Planning · BC30 · [source at f18567dc](https://github.com/microsoft/BCApps/blob/f18567dc08e2bd162bf192e1da4d714b57eb099f/src/Layers/W1/BaseApp/Inventory/Planning/WhatIfPlanning/SupplyWhatIfPlanningEngine.Codeunit.al) · facts from BC30

## Events published

- `OnRunWhatIfAnalysisOnAfterSetFilters(var TempWhatIfScenario: Record "Supply What-If Scenario" temporary; var FindReservationEntry: Record "Reservation Entry")` (integration)
  - subscribers: [Codeunit 99000848 "Mfg. Supply What-If Plan. Eng."](../codeunit/99000848.md) OnRunWhatIfAnalysisOnAfterSetFilters
- `OnSimulatePlanningAndFindReservationsOnAfterSetFilters(var TempWhatIfScenario: Record "Supply What-If Scenario" temporary; var FindReservationEntry: Record "Reservation Entry")` (integration)
  - subscribers: [Codeunit 99000848 "Mfg. Supply What-If Plan. Eng."](../codeunit/99000848.md) OnSimulatePlanningAndFindReservationsOnAfterSetFilters
- `OnBeforeInsertWhatIfImpact(ReservationEntry: Record "Reservation Entry"; var TableId: Integer; var DocumentLineNo: Integer; var ImpactedItemNo: Code[20]; var IsHandled: Boolean)` (integration)
  - subscribers: [Codeunit 99000848 "Mfg. Supply What-If Plan. Eng."](../codeunit/99000848.md) OnBeforeInsertWhatIfImpact
- `OnBeforeUpdateTableRecord(var TempWhatIfScenario: Record "Supply What-If Scenario" temporary; var IsHandled: Boolean)` (integration)
  - subscribers: [Codeunit 99000848 "Mfg. Supply What-If Plan. Eng."](../codeunit/99000848.md) OnBeforeUpdateTableRecord
- `OnAddItemToListOnAfterAddItem(ItemNo: Code[20]; var Item: Record Item; var ItemsToAnalyze: List of [Code[20]])` (integration)
  - subscribers: [Codeunit 99000848 "Mfg. Supply What-If Plan. Eng."](../codeunit/99000848.md) OnAddItemToListOnAfterAddItem
- `OnSimulatePlanningOnRunCalcItemPlan(var TempWhatIfScenario: Record "Supply What-If Scenario" temporary; var Item: Record Item; WorksheetTemplateName: Code[10])` (integration)
  - subscribers: [Codeunit 99000848 "Mfg. Supply What-If Plan. Eng."](../codeunit/99000848.md) OnSimulatePlanningOnRunCalcItemPlan

## Procedures

- `OpenWhatIfPlanning(Record: Variant)` (internal)
- `RunWhatIfAnalysis(var TempWhatIfScenario: Record "Supply What-If Scenario" temporary; var TempWhatIfImpact: Record "What-If Impact" temporary)` (internal)
- `SetScenarioToSimulate(var TempWhatIfScenario: Record "Supply What-If Scenario" temporary)` (internal)
- `GetSimulationCompleted(): Boolean` (internal)
- `GetSimulatedImpact(var TempWhatIfImpact: Record "What-If Impact" temporary)` (internal)

Plus 10 local procedures.

## Triggers

OnRun

## Recent changes

- 2026-08-27 [#9196 [Master] - What If Impact on Planning and Supply](../../changes/bcapps/9196.md) (main, BC30, feature, added)

## Across versions

- Present in: BC30
- 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). 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: "Supply What-If Planning Engine")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.