---
id: object/codeunit/99000874
type: object
title: Codeunit 99000874 "Assembly Availability Mgt."
summary: Codeunit 99000874 "Assembly Availability Mgt." in Base Application (Microsoft.Assembly.Document). 6 public procedures, 4 events, 19 event subscribers. Introduced in BC25, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - base application
versions:
  introduced: "25"
  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: 1eb80ff89ba073fec8061083f16d8c7a563dbc78464895201c77593ca727e237
evidence:
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Assembly/Document/AssemblyAvailabilityMgt.Codeunit.al
    title: src/Layers/W1/BaseApp/Assembly/Document/AssemblyAvailabilityMgt.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
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object_type: codeunit
object_id: 99000874
name: Assembly Availability Mgt.
namespace: Microsoft.Assembly.Document
app: Base Application
extends: null
first_version: "25"
last_version: "30"
present_in:
  - "25"
  - "26"
  - "27"
  - "28"
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 36
  events: 4
  subscribers: 19
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 4
  called_by: 1
  implements: 0
---

# Codeunit 99000874 "Assembly Availability Mgt."

> Codeunit 99000874 "Assembly Availability Mgt." in Base Application (Microsoft.Assembly.Document). 6 public procedures, 4 events, 19 event subscribers. Introduced in BC25, still in BC30.

Base Application · Microsoft.Assembly.Document · BC25-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Assembly/Document/AssemblyAvailabilityMgt.Codeunit.al) · facts from BC29

## Events published

- `OnBeforeShowItemAvailFromAsmHeader(var Item: Record Item; var AssemblyHeader: Record "Assembly Header")` (integration)
- `OnBeforeShowItemAvailFromAsmLine(var Item: Record Item; var AssemblyLine: Record "Assembly Line")` (integration)
- `OnAfterTransferFromAsmOrder(var InventoryEventBuffer: Record "Inventory Event Buffer"; AssemblyHeader: Record "Assembly Header")` (integration)
- `OnAfterTransferFromAsmOrderLine(var InventoryEventBuffer: Record "Inventory Event Buffer"; AssemblyLine: Record "Assembly Line")` (integration)

## Event subscriptions

- OnLookupDemandNo subscribes to Page "Demand Overview" OnLookupDemandNo
- OnSourceTypeTextOnFormat subscribes to Page "Demand Overview" OnSourceTypeTextOnFormat
- OnGetDemandDates subscribes to Codeunit "Calc. Availability Overview" OnGetDemandDates
- OnGetSupplyDates subscribes to Codeunit "Calc. Availability Overview" OnGetSupplyDates
- OnGetDemandEntries subscribes to Codeunit "Calc. Availability Overview" OnGetDemandEntries
- OnGetSupplyEntries subscribes to Codeunit "Calc. Availability Overview" OnGetSupplyEntries
- OnCheckItemInRange subscribes to Codeunit "Calc. Availability Overview" OnCheckItemInRange
- OnDemandExist subscribes to Codeunit "Calc. Availability Overview" OnDemandExist
- OnSupplyExist subscribes to Codeunit "Calc. Availability Overview" OnSupplyExist
- OnAfterGetDocumentEntries subscribes to Codeunit "Calc. Item Availability" OnAfterGetDocumentEntries
- OnAfterGetSourceReferences subscribes to Codeunit "Calc. Item Availability" OnAfterGetSourceReferences
- OnAfterShowDocument subscribes to Codeunit "Calc. Item Availability" OnAfterShowDocument
- OnLookupAvailableInventory subscribes to Table "Availability Info. Buffer" OnLookupAvailableInventory
- OnLookupGrossRequirement subscribes to Table "Availability Info. Buffer" OnLookupGrossRequirement
- OnLookupScheduledReceipt subscribes to Table "Availability Info. Buffer" OnLookupScheduledReceipt
- OnAfterCalcItemPlanningFields subscribes to Codeunit "Item Availability Forms Mgt" OnAfterCalcItemPlanningFields
- OnTransferToPeriodDetailsElseCase subscribes to Codeunit "Calc. Inventory Page Data" OnTransferToPeriodDetailsElseCase
- OnAfterMakeEntries subscribes to Page "Item Availability Line List" OnAfterMakeEntries
- OnAfterLookupEntries subscribes to Page "Item Availability Line List" OnAfterLookupEntries

## Procedures

- `ShowItemAvailabilityFromAsmHeader(var AsmHeader: Record "Assembly Header"; AvailabilityType: Enum "Item Availability Type")`
- `ShowItemAvailabilityFromAsmLine(var AsmLine: Record "Assembly Line"; AvailabilityType: Enum "Item Availability Type")`
- `ShowAsmOrders(var Item: Record Item)`
- `ShowAsmCompLines(var Item: Record Item)`
- `TransferFromAsmOrder(var InventoryEventBuffer: Record "Inventory Event Buffer"; AssemblyHeader: Record "Assembly Header")`
- `TransferFromAsmOrderLine(var InventoryEventBuffer: Record "Inventory Event Buffer"; AssemblyLine: Record "Assembly Line")`

Plus 7 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 353 "Item Availability Forms Mgt"](../codeunit/353.md) (13 calls: `ShowItemAvailabilityFromAsmHeader → FilterItem`, `ShowItemAvailabilityFromAsmHeader → ShowItemAvailabilityByEvent`, `ShowItemAvailabilityFromAsmHeader → ShowItemAvailabilityByLocation`, …)
- [Codeunit 5830 "Calc. Availability Overview"](../codeunit/5830.md) (4 calls: `OnGetDemandDates → InsertAvailabilityEntry`, `OnGetDemandEntries → InsertAvailabilityEntry`, `OnGetSupplyDates → InsertAvailabilityEntry`, …)
- [Codeunit 5530 "Calc. Item Availability"](../codeunit/5530.md) (2 calls: `TryGetAsmOrderDemandEntries → InsertEntry`, `TryGetAsmOrderSupllyEntries → InsertEntry`)
- [Page 900 "Assembly Order"](../page/900.md) (1 call: `OnAfterShowDocument → (object)`)

## Called by

- [Codeunit 99000872 "Sales Availability Mgt."](../codeunit/99000872.md) (1 call: `ShowItemAvailabilityFromSalesLine → ShowItemAvailabilityFromAsmHeader`)

## Across versions

- Present in: BC25-30
- 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: "Assembly Availability Mgt.")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.