---
title: "Table 900 Assembly Header"
author: "Jonas Paprotka"
url: https://jonas-paprotka.de/ref/table/900-assembly-header/
type: table
id: 900
name: "Assembly Header"
app: "Base Application"
namespace: Microsoft.Assembly.Document
versions: "17-28"
build: 28.5.54151.54365
source: "https://jonas-paprotka.de/ref/table/900-assembly-header/source/29/"
checked: 2026-09-20
subject: "Microsoft Dynamics 365 Business Central"
license: "Content © 2026 Jonas Paprotka. Quote freely with attribution and a link."
---

# Table 900 Assembly Header

Jonas Paprotka, https://jonas-paprotka.de/ref/table/900-assembly-header/

| | |
| --- | --- |
| App | Base Application |
| Namespace | Microsoft.Assembly.Document |
| Versions | 17-28 |
| Source file | Assembly/Document/AssemblyHeader.Table.al |

## Fields

| Id | Name | Type | Versions | Obsolete | Reason |
| --- | --- | --- | --- | --- | --- |
| 1 | Document Type | Enum Assembly Document Type | 17-28 | - | - |
| 2 | No. | Code[20] | 17-28 | - | - |
| 3 | Description | Text[100] | 17-28 | - | - |
| 4 | Search Description | Code[100] | 17-28 | - | - |
| 5 | Description 2 | Text[50] | 17-28 | - | - |
| 6 | Creation Date | Date | 17-28 | - | - |
| 7 | Last Date Modified | Date | 17-28 | - | - |
| 10 | Item No. | Code[20] | 17-28 | - | - |
| 12 | Variant Code | Code[10] | 17-28 | - | - |
| 15 | Inventory Posting Group | Code[20] | 17-28 | - | - |
| 16 | Gen. Prod. Posting Group | Code[20] | 17-28 | - | - |
| 17 | Gen. Bus. Posting Group | Code[20] | 26-28 | - | - |
| 19 | Comment | Boolean | 17-28 | - | - |
| 20 | Location Code | Code[10] | 17-28 | - | - |
| 21 | Shortcut Dimension 1 Code | Code[20] | 17-28 | - | - |
| 22 | Shortcut Dimension 2 Code | Code[20] | 17-28 | - | - |
| 23 | Posting Date | Date | 17-28 | - | - |
| 24 | Due Date | Date | 17-28 | - | - |
| 25 | Starting Date | Date | 17-28 | - | - |
| 27 | Ending Date | Date | 17-28 | - | - |
| 33 | Bin Code | Code[20] | 17-28 | - | - |
| 40 | Quantity | Decimal | 17-28 | - | - |
| 41 | Quantity (Base) | Decimal | 17-28 | - | - |
| 42 | Remaining Quantity | Decimal | 17-28 | - | - |
| 43 | Remaining Quantity (Base) | Decimal | 17-28 | - | - |
| 44 | Assembled Quantity | Decimal | 17-28 | - | - |
| 45 | Assembled Quantity (Base) | Decimal | 17-28 | - | - |
| 46 | Quantity to Assemble | Decimal | 17-28 | - | - |
| 47 | Quantity to Assemble (Base) | Decimal | 17-28 | - | - |
| 48 | Reserved Quantity | Decimal | 17-28 | - | - |
| 49 | Reserved Qty. (Base) | Decimal | 17-28 | - | - |
| 50 | Planning Flexibility | Enum Reservation Planning Flexibility | 17-28 | - | - |
| 51 | MPS Order | Boolean | 17-28 | - | - |
| 54 | Assemble to Order | Boolean | 17-28 | - | - |
| 63 | Posting No. | Code[20] | 17-28 | - | - |
| 65 | Unit Cost | Decimal | 17-28 | - | - |
| 67 | Cost Amount | Decimal | 17-28 | - | - |
| 68 | Rolled-up Assembly Cost | Decimal | 17-28 | - | - |
| 75 | Indirect Cost % | Decimal | 17-28 | - | - |
| 76 | Overhead Rate | Decimal | 17-28 | - | - |
| 80 | Unit of Measure Code | Code[10] | 17-28 | - | - |
| 81 | Qty. per Unit of Measure | Decimal | 17-28 | - | - |
| 82 | Qty. Rounding Precision | Decimal | 19-28 | - | - |
| 83 | Qty. Rounding Precision (Base) | Decimal | 19-28 | - | - |
| 107 | No. Series | Code[20] | 17-28 | - | - |
| 108 | Posting No. Series | Code[20] | 17-28 | - | - |
| 120 | Status | Option | 17-28 | - | - |
| 480 | Dimension Set ID | Integer | 17-28 | - | - |
| 9000 | Assigned User ID | Code[50] | 17-28 | - | - |

## Keys

| Name | Fields | Versions |
| --- | --- | --- |
| Key1, clustered | Document Type, No. | 17-28 |
| Key2 | Document Type, Item No., Variant Code, Location Code, Due Date | 17-28 |

## Procedures

| Name | Parameters | Returns | Access | Versions | Obsolete | Reason |
| --- | --- | --- | --- | --- | --- | --- |
| RefreshBOM | () | - | public | 17-28 | - | - |
| InitRecord | () | - | public | 17-28 | - | - |
| InitRemainingQty | () | - | public | 17-28 | - | - |
| InitQtyToAssemble | () | - | public | 17-28 | - | - |
| AssistEdit | (Record Assembly Header) | Boolean | public | 17-28 | - | - |
| SetHideValidationDialog | (Boolean) | - | public | 17-28 | - | - |
| DeleteAssemblyLines | () | - | public | 17-28 | - | - |
| ShowReservation | () | - | public | 17-28 | - | - |
| ShowReservationEntries | (Boolean) | - | public | 17-28 | - | - |
| AutoReserveAsmLine | (Record Assembly Line) | - | public | 17-28 | - | - |
| SetTestReservationDateConflict | (Boolean) | - | public | 17-28 | - | - |
| CreateDim | (Integer, Code[20]) | - | public | 17-22 | Pending 20.0 | Replaced by CreateDim(DefaultDimSource: List of [Dictionary of [Integer, Code[20]]]) |
| ValidateShortcutDimCode | (Integer, var Code[20]) | - | public | 17-28 | - | - |
| GetRemainingQty | (var Decimal, var Decimal) | - | public | 17-28 | - | - |
| GetReservationQty | (var Decimal, var Decimal, var Decimal, var Decimal) | Decimal | public | 17-28 | - | - |
| GetSourceCaption | () | Text[80] | public | 17-28 | - | - |
| SetReservationEntry | (var Record Reservation Entry) | - | public | 17-28 | - | - |
| SetReservationFilters | (var Record Reservation Entry) | - | public | 17-28 | - | - |
| ReservEntryExist | () | Boolean | public | 17-28 | - | - |
| SetItemToPlanFilters | (var Record Item, Enum Assembly Document Type) | - | public | 17-28 | - | - |
| FilterLinesWithItemToPlan | (var Record Item, Option) | - | public | 17-19 | Pending 17.0 | Replaced by SetItemToPlanFilters(). |
| FindItemToPlanLines | (var Record Item, Enum Assembly Document Type) | Boolean | public | 17-28 | - | - |
| FindLinesWithItemToPlan | (var Record Item, Option) | Boolean | public | 17-19 | Pending 17.0 | Replaced by FindItemToPlanLines() |
| ItemToPlanLinesExist | (var Record Item, Enum Assembly Document Type) | Boolean | public | 17-28 | - | - |
| LinesWithItemToPlanExist | (var Record Item, Option) | Boolean | public | 17-19 | Pending 17.0 | Replaced by ItemToPlanLinesExist() |
| FilterLinesForReservation | (Record Reservation Entry, Option, Text, Boolean) | - | public | 17-28 | - | - |
| ShowDimensions | () | - | public | 17-28 | - | - |
| ShowStatistics | () | - | public | 17-28 | Pending 27.0 | the statistics action is refactored to use the RunObject property |
| SetDim | () | - | public | 17-22 | Pending 20.0 | Replaced by CreateDim(DefaultDimSource: List of [Dictionary of [Integer, Code[20]]]) |
| UpdateUnitCost | () | - | public | 17-28 | - | - |
| SetItemFilter | (var Record Item) | - | public | 17-28 | - | - |
| ShowAssemblyList | () | - | public | 17-28 | - | - |
| RoundQty | (var Decimal) | - | public | 17-28 | - | - |
| CalcActualCosts | (var Decimal) | - | public | 17-28 | - | - |
| ValidateDates | (Integer, Boolean) | - | public | 17-28 | - | - |
| GetDefaultBin | () | - | public | 17-28 | - | - |
| GetFromAssemblyBin | (Record Location, var Code[20]) | Boolean | public | 17-28 | - | - |
| ValidateBinCode | (Code[20]) | - | public | 17-28 | - | - |
| CreatePick | (Boolean, Code[50], Option, Boolean, Boolean, Boolean) | - | public | 17-28 | - | - |
| CreateInvtMovement | (Boolean, Boolean, Boolean, var Integer, var Integer) | - | public | 17-28 | - | - |
| CompletelyPicked | () | Boolean | public | 17-28 | - | - |
| IsInbound | () | Boolean | public | 17-28 | - | - |
| OpenItemTrackingLines | () | - | public | 17-28 | - | - |
| ItemExists | (Code[20]) | Boolean | public | 17-28 | - | - |
| TestStatusOpen | () | - | public | 17-28 | - | - |
| SuspendStatusCheck | (Boolean) | - | public | 17-28 | - | - |
| IsStatusCheckSuspended | () | Boolean | public | 17-28 | - | - |
| ShowTracking | () | - | public | 17-28 | - | - |
| ShowAsmToOrder | () | - | public | 17-28 | - | - |
| IsAsmToOrder | () | Boolean | public | 17-28 | - | - |
| CheckIsNotAsmToOrder | () | - | public | 17-28 | - | - |
| IsStandardCostItem | () | Boolean | public | 17-28 | - | - |
| ShowAvailability | () | - | public | 17-28 | - | - |
| ShowDueDateBeforeWorkDateMsg | () | - | public | 17-28 | - | - |
| AddBOMLine | (Record BOM Component) | - | public | 17-28 | - | - |
| UpdateWarningOnLines | () | - | public | 17-28 | - | - |
| SetWarningsOff | () | - | public | 17-28 | - | - |
| CalcTotalCost | (var Decimal) | Decimal | public | 17-28 | - | - |
| RowID1 | () | Text[250] | public | 17-28 | - | - |
| CalcStartDateFromEndDate | (Date) | Date | public | 19-28 | - | - |
| CalcEndDateFromStartDate | (Date) | Date | public | 19-28 | - | - |
| CalcEndDateFromDueDate | (Date) | Date | public | 19-28 | - | - |
| CalcDueDateFromEndDate | (Date) | Date | public | 19-28 | - | - |
| ValidateDueDate | (Date, Boolean) | - | public | 19-28 | - | - |
| ValidateEndDate | (Date, Boolean) | - | public | 19-28 | - | - |
| ValidateStartDate | (Date, Boolean) | - | public | 19-28 | - | - |
| CreateDim | (List) | - | public | 20-28 | - | - |
| CheckIsNotAsmToOrder | (Integer) | - | public | 20-28 | - | - |
| SetWarningsOn | () | - | public | 20-28 | - | - |
| CreateDimFromDefaultDim | () | - | public | 20-28 | - | - |
| AssemblyOrderLineExist | () | Boolean | public | 21-28 | - | - |
| PerformManualRelease | () | - | internal | 22-28 | - | - |
| GetQtyReservedFromStockState | () | Enum Reservation From Stock | internal | 23-28 | - | - |
| AssemblyLinesExist | () | Boolean | public | 26-28 | - | - |
| ChangeGenBusPostingGroupAssemblyLines | () | - | public | 26-28 | - | - |
| GetHideValidationDialog | () | Boolean | public | 26-28 | - | - |

## Events

| Kind | Name | Parameters | Versions | Obsolete | Reason |
| --- | --- | --- | --- | --- | --- |
| Integration event | OnAfterCreateDimTableIDs | (var Record Assembly Header, Integer, var Integer, var Code[20]) | 17-22 | Pending 20.0 | Temporary event for compatibility |
| Integration event | OnAfterGetSKU | (Record Assembly Header, var Boolean) | 17-28 | - | - |
| Integration event | OnAfterInitQtyToAssemble | (var Record Assembly Header, Integer) | 17-28 | - | - |
| Integration event | OnAfterInitRecord | (var Record Assembly Header) | 17-28 | - | - |
| Integration event | OnAfterInitRemaining | (var Record Assembly Header, Integer) | 17-28 | - | - |
| Integration event | OnAfterSetReservationFilters | (var Record Reservation Entry, Record Assembly Header) | 17-28 | - | - |
| Integration event | OnAfterValidateShortcutDimCode | (var Record Assembly Header, var Record Assembly Header, Integer, var Code[20]) | 17-28 | - | - |
| Integration event | OnBeforeReplaceLinesFromBOM | (var Record Assembly Header, Record Assembly Header, var Boolean, var Boolean) | 17-28 | - | - |
| Integration event | OnBeforeRunWhseSourceCreateDocument | (var Record Assembly Header, Boolean, Code[50], Option, Boolean, Boolean, Boolean, var Boolean) | 17-28 | - | - |
| Integration event | OnValidateItemNoOnAfterGetDefaultBin | (var Record Assembly Header, Record Item) | 17-28 | - | - |
| Integration event | OnValidateItemNoOnBeforeValidateDates | (var Record Assembly Header, Record Assembly Header, var Boolean) | 17-28 | - | - |
| Integration event | OnValiateQuantityOnAfterCalcBaseQty | (var Record Assembly Header, Integer) | 17-28 | - | - |
| Integration event | OnBeforeValidateShortcutDimCode | (var Record Assembly Header, var Record Assembly Header, Integer, var Code[20]) | 17-28 | - | - |
| Integration event | OnValidateVariantCodeOnBeforeUpdateAssemblyLines | (var Record Assembly Header, Record Assembly Header, Integer, Integer, var Boolean) | 17-28 | - | - |
| Integration event | OnValidateVariantCodeOnBeforeValidateDates | (var Record Assembly Header, Record Assembly Header, var Boolean) | 17-28 | - | - |
| Integration event | OnBeforeUpdateAssemblyLinesAndVerifyReserveQuantity | (var Record Assembly Header, var Record Assembly Header, Integer, Integer, var Boolean) | 17-28 | - | - |
| Integration event | OnBeforeCalcStartDateFromEndDate | (var Record Assembly Header) | 17 | - | - |
| Integration event | OnBeforeCalcEndDateFromStartDate | (var Record Assembly Header) | 17-28 | - | - |
| Integration event | OnBeforeShowReservation | (var Record Assembly Header, var Boolean) | 17-28 | - | - |
| Integration event | OnAfterCalcEndDateFromStartDate | (var Record Assembly Header, var Date) | 18-28 | - | - |
| Integration event | OnAfterCalcStartDateFromEndDate | (var Record Assembly Header, var Date) | 18-28 | - | - |
| Integration event | OnAfterFilterLinesForReservation | (var Record Assembly Header, Record Reservation Entry, Option, Text, Boolean) | 18-28 | - | - |
| Integration event | OnBeforeDoValidateDates | (var Record Assembly Header, var Record Assembly Header, Integer, Date, Date, Date, var Boolean) | 18-28 | - | - |
| Integration event | OnBeforeValidateDueDate | (var Record Assembly Header, Date) | 18-28 | - | - |
| Integration event | OnBeforeCreateInvtMovement | (var Record Assembly Header, Boolean, Boolean, Boolean, var Integer, var Integer, var Boolean) | 18-28 | - | - |
| Integration event | OnValidateLocationCodeOnBeforeValidateDates | (var Record Assembly Header, Record Assembly Header, var Boolean) | 18-28 | - | - |
| Integration event | OnBeforeCalcStartDateFromEndDate | (var Record Assembly Header, var Date, var Boolean) | 18-28 | - | - |
| Integration event | OnBeforeCheckIsNotAsmToOrder | (var Record Assembly Header, var Boolean) | 18 | - | - |
| Integration event | OnBeforeValidateDates | (var Record Assembly Header, Integer, Boolean, var Boolean) | 18-21 | - | - |
| Integration event | OnAfterSetItemToPlanFilters | (var Record Assembly Header, var Record Item, Enum Assembly Document Type) | 19-28 | - | - |
| Integration event | OnBeforeValidateQuantityBase | (var Record Assembly Header, var Record Assembly Header, Integer, var Boolean) | 19-28 | - | - |
| Integration event | OnBeforeCheckIsNotAsmToOrder | (var Record Assembly Header, var Boolean, Record Assembly Header, Integer) | 19 | - | - |
| Integration event | OnBeforeRunEventOnAfterCreateDimTableIDs | (var Record Assembly Header, var List, var Boolean) | 20-22 | Pending 20.0 | Temporary event for compatibility |
| Integration event | OnAfterInitDefaultDimensionSources | (var Record Assembly Header, var List) | 20 | - | - |
| Integration event | OnAfterCreateDim | (var Record Assembly Header, List) | 20-28 | - | - |
| Integration event | OnBeforeOpenItemTrackingLines | (var Record Assembly Header, var Boolean) | 20-28 | - | - |
| Integration event | OnBeforeCheckIsNotAsmToOrder | (var Record Assembly Header, var Boolean, Record Assembly Header, Integer, Integer) | 20-28 | - | - |
| Integration event | OnAfterInitDefaultDimensionSources | (var Record Assembly Header, var List, Integer) | 21-28 | - | - |
| Integration event | OnAfterGetNoSeriesCode | (Record Assembly Header, var Code[20]) | 21-28 | - | - |
| Integration event | OnAfterRoundQty | (Record Assembly Header, var Decimal) | 21-28 | - | - |
| Integration event | OnBeforeShowDueDateBeforeWorkDateMsg | (Record Assembly Header, var Boolean) | 21-28 | - | - |
| Integration event | OnBeforeValidateQuantity | (var Record Assembly Header, var Record Assembly Header, Integer, var Boolean) | 21-28 | - | - |
| Integration event | OnBeforeCalcBaseQty | (var Record Assembly Header, Decimal, Text, Text, var Decimal, var Boolean) | 21-28 | - | - |
| Integration event | OnAfterShowDimensions | (var Record Assembly Header) | 22-28 | - | - |
| Integration event | OnBeforeValidateDates | (var Record Assembly Header, Integer, var Boolean, var Boolean) | 22-28 | - | - |
| Integration event | OnAfterGetDefaultBin | (var Record Assembly Header) | 22-28 | - | - |
| Integration event | OnAfterRunWhseSourceCreateDocument | (var Record Assembly Header, Boolean, Code[50], Option, Boolean, Boolean, Boolean) | 22-28 | - | - |
| Integration event | OnUpdateAllLineDimOnBeforeConfirmUpdatedDimension | (var Record Assembly Header, var Boolean) | 22-28 | - | - |
| Integration event | OnBeforeCreateDim | (var Record Assembly Header, Integer, List, var Boolean) | 24-28 | - | - |
| Integration event | OnAfterValidateDates | (var Record Assembly Header, Integer, var Boolean) | 25-28 | - | - |
| Integration event | OnBeforeAssemblyLinesExist | (var Record Assembly Header, var Boolean, var Boolean) | 26-28 | - | - |
| Integration event | OnBeforeChangeGenBusPostingGroupAssemblyLines | (var Record Assembly Header, Record Assembly Header, var Boolean) | 26-28 | - | - |
| Integration event | ChangeGenBusPostingGroupAssemblyLinesOnBeforeConfirm | (var Record Assembly Header, Record Assembly Header, Boolean, var Boolean, var Boolean) | 26-28 | - | - |
| Integration event | OnConfirmDeletionOnBeforeAssemblyLineLoop | (var Record Assembly Line, var Boolean) | 26-28 | - | - |
| Integration event | OnBeforeGetDefaultBin | (var Record Assembly Header, var Boolean, Record Assembly Header) | 27-28 | - | - |
| Integration event | OnAfterSetDescriptionsFromItem | (var Record Assembly Header, Record Item) | 27-28 | - | - |
| Integration event | OnValidateVariantCodeOnAfterUpdateDescriptions | (var Record Assembly Header, Record Item Variant) | 27-28 | - | - |

## Source

Symbols: Microsoft.BaseApplication.symbols.437dbf0e-84ff-417a-965d-ed2bb9650972, https://dynamicssmb2.pkgs.visualstudio.com/DynamicsBCPublicFeeds/_packaging/MSSymbols/nuget/v3/index.json, highest build per major on 2026-09-20.
AL source 29: https://github.com/microsoft/BCApps, MIT, releases/29.x at a66254c3b8b5bb1cea290dc8f9d097aec4381153.

Jonas Paprotka, 2026-09-20.