---
id: object/tableextension/905
type: object
title: Table extension 905 "Asm. Item"
summary: Table extension 905 "Asm. Item" in Base Application (Microsoft.Inventory.Item), extends "Item". 4 fields. Introduced in BC26, still in BC30, changed in BC27-28.
tier: official
language: en
tags:
  - tableextension
  - base application
versions:
  introduced: "26"
  last_changed: "28"
  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: 0485a7f962c2ce55e0a4548db1d4afd30c530152c14d17728e06b26bc0b9fd56
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Assembly/Inventory/Item/AsmItem.TableExt.al
    title: src/Layers/W1/BaseApp/Assembly/Inventory/Item/AsmItem.TableExt.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn: []
  objects:
    - object/table/27
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
object_type: tableextension
object_id: 905
name: Asm. Item
namespace: Microsoft.Inventory.Item
app: Base Application
extends: Item
first_version: "26"
last_version: "30"
present_in:
  - "26"
  - "27"
  - "28"
  - "29"
  - "30"
changed_in:
  - "27"
  - "28"
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 4
  procedures: 0
  events: 0
  subscribers: 0
relations:
  out: 5
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 0
  called_by: 0
  implements: 0
---

# Table extension 905 "Asm. Item"

> Table extension 905 "Asm. Item" in Base Application (Microsoft.Inventory.Item), extends "Item". 4 fields. Introduced in BC26, still in BC30, changed in BC27-28.

Base Application · Microsoft.Inventory.Item · BC26-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Assembly/Inventory/Item/AsmItem.TableExt.al) · facts from BC29

Extends [Item](../table/27.md).

## 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 |
|---|---|---|---|---|
| 929 | Res. Qty. on Assembly Order | Decimal | — | FlowField: sum("Reservation Entry"."Quantity (Base)" where("Item No." = field("No."), "Source Type" = const(900), "Source Subtype" = const("1"), "Reservation Status" = const(Reservation), "Location Code" = field("Location Filter"), "Variant Code" = field("Variant Filter"), "Expected Receipt Date" = field("Date...; not editable |
| 930 | Res. Qty. on Asm. Comp. | Decimal | — | FlowField: - sum("Reservation Entry"."Quantity (Base)" where("Item No." = field("No."), "Source Type" = const(901), "Source Subtype" = const("1"), "Reservation Status" = const(Reservation), "Location Code" = field("Location Filter"), "Variant Code" = field("Variant Filter"), "Shipment Date" = field("Date Filte...; not editable |
| 977 | Qty. on Assembly Order | Decimal | Specifies how many units of the item are allocated to assembly orders, which is how many are listed on outstanding assembly order headers. <small>via [Page extension 904 "Asm. Item Card"](../pageextension/904.md)</small> | FlowField: sum("Assembly Header"."Remaining Quantity (Base)" where("Document Type" = const(Order), "Item No." = field("No."), "Shortcut Dimension 1 Code" = field("Global Dimension 1 Filter"), "Shortcut Dimension 2 Code" = field("Global Dimension 2 Filter"), "Location Code" = field("Location Filter"), "Variant ...; not editable |
| 978 | Qty. on Asm. Component | Decimal | Specifies how many units of the item are allocated as assembly components, which means how many are listed on outstanding assembly order lines. <small>via [Page extension 904 "Asm. Item Card"](../pageextension/904.md)</small> | FlowField: sum("Assembly Line"."Remaining Quantity (Base)" where("Document Type" = const(Order), Type = const(Item), "No." = field("No."), "Shortcut Dimension 1 Code" = field("Global Dimension 1 Filter"), "Shortcut Dimension 2 Code" = field("Global Dimension 2 Filter"), "Location Code" = field("Location Filter...; not editable |

## Relations

- extends [Table 27 "Item"](../table/27.md)
- Res. Qty. on Asm. Comp.: CalcFormula [Table 337 "Reservation Entry"](../table/337.md)
- Res. Qty. on Assembly Order: CalcFormula [Table 337 "Reservation Entry"](../table/337.md)
- Qty. on Assembly Order: CalcFormula [Table 900 "Assembly Header"](../table/900.md)
- Qty. on Asm. Component: CalcFormula [Table 901 "Assembly Line"](../table/901.md)

## Across versions

- Present in: BC26-30
- Changed (declaration) in: BC27-28

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: "tableextension", object_name: "Asm. Item")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.