---
id: object/codeunit/99000820
type: object
title: Codeunit 99000820 "Mfg. Bom Buffer"
summary: Codeunit 99000820 "Mfg. Bom Buffer" in Base Application (Microsoft.Inventory.BOM). 1 events, 10 event subscribers. Introduced in BC27, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - base application
versions:
  introduced: "27"
  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: afe9a559e0ccda9789350946741a7c71aba0c3fe325d14be91da111477fcfe7a
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Manufacturing/Inventory/BOM/MfgBOMBuffer.Codeunit.al
    title: src/Layers/W1/BaseApp/Manufacturing/Inventory/BOM/MfgBOMBuffer.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn: []
  objects: []
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
object_type: codeunit
object_id: 99000820
name: Mfg. Bom Buffer
namespace: Microsoft.Inventory.BOM
app: Base Application
extends: null
first_version: "27"
last_version: "30"
present_in:
  - "27"
  - "28"
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 11
  events: 1
  subscribers: 10
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 10
  called_by: 0
  implements: 0
---

# Codeunit 99000820 "Mfg. Bom Buffer"

> Codeunit 99000820 "Mfg. Bom Buffer" in Base Application (Microsoft.Inventory.BOM). 1 events, 10 event subscribers. Introduced in BC27, still in BC30.

Base Application · Microsoft.Inventory.BOM · BC27-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Manufacturing/Inventory/BOM/MfgBOMBuffer.Codeunit.al) · facts from BC29

## Events published

- `OnBeforeRoundUnitAmtForRolledUpMfgOvhdCost(var BOMBuffer: Record "BOM Buffer")` (integration)

## Event subscriptions

- OnInitFromItemOnAfterSetReplenishmentSystem subscribes to Table "BOM Buffer" OnInitFromItemOnAfterSetReplenishmentSystem
- OnAfterGetUnitCost subscribes to Table "BOM Buffer" OnAfterGetUnitCost
- OnGetItemCostsOnBeforeRoundCosts subscribes to Table "BOM Buffer" OnGetItemCostsOnBeforeRoundCosts
- OnAfterRoundCosts subscribes to Table "BOM Buffer" OnAfterRoundCosts
- OnAfterCalcIndirectCost subscribes to Table "BOM Buffer" OnAfterCalcIndirectCost
- OnAfterCalcDirectCost subscribes to Table "BOM Buffer" OnAfterCalcDirectCost
- OnAfterCalcOvhdCost subscribes to Table "BOM Buffer" OnAfterCalcOvhdCost
- OnIsQtyPerOKOnAfterCheckItemAssemblyBOM subscribes to Table "BOM Buffer" OnIsQtyPerOKOnAfterCheckItemAssemblyBOM
- OnAfterIsLineOk subscribes to Table "BOM Buffer" OnAfterIsLineOk
- OnAfterShowWarning subscribes to Table "BOM Warning Log" OnAfterShowWarning

## 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 99000758 "Mfg. Cost Calculation Mgt."](../codeunit/99000758.md) (5 calls: `OnAfterCalcDirectCost → CanIncNonInvCostIntoProductionItem`, `OnAfterCalcOvhdCost → CanIncNonInvCostIntoProductionItem`, `OnAfterGetUnitCost → CanIncNonInvCostIntoProductionItem`, …)
- [Codeunit 99000756 "VersionManagement"](../codeunit/99000756.md) (2 calls: `OnInitFromItemOnAfterSetReplenishmentSystem → GetBOMUnitOfMeasure`, `OnInitFromItemOnAfterSetReplenishmentSystem → GetBOMVersion`)
- [Codeunit 5402 "Unit of Measure Management"](../codeunit/5402.md) (1 call: `OnAfterGetUnitCost → GetQtyPerUnitOfMeasure`)
- [Codeunit 99000769 "Production BOM-Check"](../codeunit/99000769.md) (1 call: `OnInitFromItemOnAfterSetReplenishmentSystem → CheckBOM`)
- [Page 99000754 "Work Center Card"](../page/99000754.md) (1 call: `OnAfterShowWarning → (object)`)
- [Page 99000760 "Machine Center Card"](../page/99000760.md) (1 call: `OnAfterShowWarning → (object)`)
- [Page 99000766 "Routing"](../page/99000766.md) (1 call: `OnAfterShowWarning → (object)`)
- [Page 99000786 "Production BOM"](../page/99000786.md) (1 call: `OnAfterShowWarning → (object)`)
- [Page 99000809 "Production BOM Version"](../page/99000809.md) (1 call: `OnAfterShowWarning → (object)`)
- [Page 99000810 "Routing Version"](../page/99000810.md) (1 call: `OnAfterShowWarning → (object)`)

## Across versions

- Present in: BC27-30
- 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: "Mfg. Bom Buffer")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.