--- id: object/codeunit/6520 type: object title: Codeunit 6520 "Item Tracing Mgt." summary: Codeunit 6520 "Item Tracing Mgt." in Base Application (Microsoft.Inventory.Tracking). 17 public procedures, 29 events. Present since at least BC23, still in BC30, changed in BC24-26, BC28. tier: official language: en tags: - codeunit - base application versions: introduced: null 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: 8b93a162f74aeabb5259e67350894d68cbb9e5559296f17c326de80fe12d5d12 evidence: - kind: code url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Inventory/Tracking/ItemTracingMgt.Codeunit.al title: src/Layers/W1/BaseApp/Inventory/Tracking/ItemTracingMgt.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: 6520 name: Item Tracing Mgt. namespace: Microsoft.Inventory.Tracking app: Base Application extends: null first_version: "23" last_version: "30" present_in: - "23" - "24" - "25" - "26" - "27" - "28" - "29" - "30" changed_in: - "24" - "25" - "26" - "28" source_major: "29" obsolete: null countries: [] ms_search_form_ids: [] counts: fields: 0 procedures: 57 events: 29 subscribers: 0 relations: out: 0 referenced_by: 0 pages: 0 extended_by: 0 event_subscribers: 8 calls: 11 called_by: 2 implements: 0 --- # Codeunit 6520 "Item Tracing Mgt." > Codeunit 6520 "Item Tracing Mgt." in Base Application (Microsoft.Inventory.Tracking). 17 public procedures, 29 events. Present since at least BC23, still in BC30, changed in BC24-26, BC28. Base Application · Microsoft.Inventory.Tracking · BC23-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/Inventory/Tracking/ItemTracingMgt.Codeunit.al) · facts from BC29 ## Events published - `OnAfterInitItemTracingHistoryBuffer(var ItemTracingHistoryBuffer: Record "Item Tracing History Buffer"; var ExtFilterExists: Boolean)` (integration) - `OnAfterInitSearchParam(var ItemTracingBuffer: Record "Item Tracing Buffer"; var ItemTracingBuffer2: Record "Item Tracing Buffer")` (integration) - `OnAfterInitSearchCriteria(SerialNoFilter: Text; LotNoFilter: Text; PackageNoFilter: Text; ItemNoFilter: Text; var SearchCriteria: Option)` (integration) - `OnAfterTransferData(var ItemLedgerEntry: Record "Item Ledger Entry"; var TempItemTracingBuffer: Record "Item Tracing Buffer" temporary; ValueEntry: Record "Value Entry")` (integration) - `OnBeforeExitLevel(TempItemTracingBuffer: Record "Item Tracing Buffer" temporary; var Result: Boolean; var IsHandled: Boolean)` (integration) - `OnBeforeFindComponents(var ItemLedgEntry2: Record "Item Ledger Entry"; var TempItemTracingBuffer: Record "Item Tracing Buffer" temporary; Direction: Option Forward,Backward; ShowComponents: Option No,"Item-tracked only",All; ParentID: Integer; var CurrentLevel: Integer; var TempLineNo: Integer; var IsHandled: Boolean)` (integration) - `OnBeforeInsertRecord(var ItemTracingBuffer: Record "Item Tracing Buffer"; ParentID: Integer; var Result: Boolean; var IsHandled: Boolean)` (integration) - `OnBeforeIsSpecificTracking(ItemNo: Code[20]; ItemTrackingSetup: Record "Item Tracking Setup"; var IsSpecific: Boolean; var IsHandled: Boolean)` (integration) - `OnBeforeItemTracingHistoryBufferInsert(var ItemTracingHistoryBuffer: Record "Item Tracing History Buffer")` (integration) - `OnBeforeNextLevel(var TempTrackEntry: Record "Item Tracing Buffer" temporary; var TempTrackEntry2: Record "Item Tracing Buffer" temporary; Direction: Option Forward,Backward; ShowComponents: Option No,"Item-tracked only",All; ParentID: Integer; var CurrentLevel: Integer; var TempLineNo: Integer; var IsHandled: Boolean)` (integration) - `OnBeforeShowDocument(RecRef: RecordRef; var IsHandled: Boolean)` (integration) - `OnBeforeSetRecordID(var TrackingEntry: Record "Item Tracing Buffer"; var IsHandled: Boolean)` (integration) - `OnBeforeUpdateHistory(var TempItemTracingHistoryBuffer: Record "Item Tracing History Buffer" temporary; var CurrentHistoryEntryNo: Integer; SerialNoFilter: Text; LotNoFilter: Text; PackageNoFilter: Text; ItemNoFilter: Text; VariantFilter: Text; TraceMethod: Option; ShowComponents: Option; var OK: Boolean; var IsHandled: Boolean)` (integration) - `OnFindComponentsOnAfterSetFilters(var ItemLedgerEntry: Record "Item Ledger Entry"; var ItemLedgerEntry2: Record "Item Ledger Entry")` (integration) - `OnFindComponentsOnAfterTransferData(var TempItemTracingBuffer: Record "Item Tracing Buffer" temporary; var ItemLedgerEntry2: Record "Item Ledger Entry"; ItemLedgerEntry: Record "Item Ledger Entry")` (integration) - `OnFirstLevelOnAfterSetLedgerEntryFilters(var ItemLedgerEntry: Record "Item Ledger Entry"; var SerialNoFilter: Text; var LotNoFilter: Text; var ItemNoFilter: Text)` (integration) - `OnFirstLevelOnAfterItemLedgEntrySetCurrentKey(var ItemLedgerEntry: Record "Item Ledger Entry")` (integration) - `OnFirstLevelOnAfterTempItemTracingBufferSetCurrentKey(var TempItemTracingBuffer: Record "Item Tracing Buffer" temporary)` (integration) - `OnFirstLevelOnAfterTransferData(var TempItemTracingBuffer: Record "Item Tracing Buffer" temporary)` (integration) - `OnFirstLevelOnBeforeInsertFirstLevelEntry(var ItemTracingBuffer: Record "Item Tracing Buffer"; ItemLedgerEntry: Record "Item Ledger Entry")` (integration) - `OnFirstLevelOnBeforeTransferData(var ItemLedgerEntry: Record "Item Ledger Entry"; var ItemLedgerEntry2: Record "Item Ledger Entry")` (integration) - `OnInsertRecordOnBeforeSetDescription(var TempTrackEntry: Record "Item Tracing Buffer"; var RecRef: RecordRef; var Description2: Text[100])` (integration) - subscribers: [Codeunit 935 "Asm. Item Tracking Mgt."](../codeunit/935.md) OnInsertRecordOnBeforeSetDescription, [Codeunit 99000891 "Mfg. Item Tracking Mgt."](../codeunit/99000891.md) OnInsertRecordOnBeforeSetDescription - `OnNextLevelOnAfterTransferData(var TempItemTracingBuffer: Record "Item Tracing Buffer" temporary; var TempItemTracingBuffer2: Record "Item Tracing Buffer" temporary)` (integration) - `OnRetrieveHistoryDataOnAfterTraceHistoryLine(var TempItemTracingHistoryBuffer: Record "Item Tracing History Buffer" temporary)` (integration) - `OnSetRecordIDOnProcessServiceDocument(ItemLedgEntry: Record "Item Ledger Entry"; var TrackingEntry: Record "Item Tracing Buffer")` (integration) - subscribers: [Codeunit 6481 "Serv. Item Tracing Mgt."](../codeunit/6481.md) OnSetRecordIDOnProcessServiceDocument - `OnBeforeInitSearchCriteria(var SearchCriteria: Option "None",Lot,Serial,Both,Item,Package; SerialNoFilter: Text; LotNoFilter: Text; PackageNoFilter: Text; ItemNoFilter: Text; var IsHandled: Boolean)` (integration) - `OnShowDocument(RecRef: RecordRef; RecID: RecordId)` (integration) - subscribers: [Codeunit 6481 "Serv. Item Tracing Mgt."](../codeunit/6481.md) OnShowDocument, [Codeunit 935 "Asm. Item Tracking Mgt."](../codeunit/935.md) OnShowDocument, [Codeunit 99000891 "Mfg. Item Tracking Mgt."](../codeunit/99000891.md) OnShowDocument - `OnFindRecordsOnBeforeInitTempTable(var ItemTracingBuffer: Record "Item Tracing Buffer"; Direction: Option; ShowComponents: Option)` (integration) - `OnAfterSetRecordID(var TrackingEntry: Record "Item Tracing Buffer"; RecRef: RecordRef)` (integration) - subscribers: [Codeunit 935 "Asm. Item Tracking Mgt."](../codeunit/935.md) OnAfterSetRecordID, [Codeunit 99000891 "Mfg. Item Tracking Mgt."](../codeunit/99000891.md) OnAfterSetRecordID ## Procedures - `FindRecords(var TempTrackEntry: Record "Item Tracing Buffer"; var TempTrackEntry2: Record "Item Tracing Buffer"; SerialNoFilter: Text; LotNoFilter: Text; PackageNoFilter: Text; ItemNoFilter: Text; VariantFilter: Text; Direction: Option Forward,Backward; ShowComponents: Option No,"Item-tracked only",All)` - `NextLevel(var TempTrackEntry: Record "Item Tracing Buffer"; TempTrackEntry2: Record "Item Tracing Buffer"; Direction: Option Forward,Backward; ShowComponents: Option No,"Item-tracked only",All; ParentID: Integer)` - `FindComponents(var ItemLedgEntry2: Record "Item Ledger Entry"; var TempItemTracingBuffer: Record "Item Tracing Buffer" temporary; Direction: Option Forward,Backward; ShowComponents: Option No,"Item-tracked only",All; ParentID: Integer)` - `InsertRecord(var TempTrackEntry: Record "Item Tracing Buffer"; ParentID: Integer): Boolean` - `InitTempTable(var TempTrackEntry: Record "Item Tracing Buffer"; var TempTrackEntry2: Record "Item Tracing Buffer")` - `ExpandAll(var TempTrackEntry: Record "Item Tracing Buffer"; var TempTrackEntry2: Record "Item Tracing Buffer")` - `TransferData(var ItemLedgEntry: Record "Item Ledger Entry"; var TempTrackEntry: Record "Item Tracing Buffer")` - `InitSearchCriteria(SerialNoFilter: Text; LotNoFilter: Text; PackageNoFilter: Text; ItemNoFilter: Text)` - `InitSearchParm(var ItemTracingBuffer: Record "Item Tracing Buffer"; var SerialNoFilter: Text; var LotNoFilter: Text; var PackageNoFilter: Text; var ItemNoFilter: Text; var VariantFilter: Text)` - `SetRecordID(var TrackingEntry: Record "Item Tracing Buffer")` - `ShowDocument(RecID: RecordID)` - `SetExpansionStatus(Rec: Record "Item Tracing Buffer"; var TempTrackEntry: Record "Item Tracing Buffer"; var TempTrackEntry2: Record "Item Tracing Buffer"; var ActualExpansionStatus: Option "Has Children",Expanded,"No Children")` - `IsSpecificTracking(ItemNo: Code[20]; ItemTrackingSetup: Record "Item Tracking Setup"): Boolean` - `RecallHistory(Steps: Integer; var TempTrackEntry: Record "Item Tracing Buffer"; var TempTrackEntry2: Record "Item Tracing Buffer"; var SerialNoFilter: Text; var LotNoFilter: Text; var PackageNoFilter: Text; var ItemNoFilter: Text; var VariantFilter: Text; var TraceMethod: Option "Origin->Usage","Usage->Origin"; var ShowComponents: Option No,"Item-tracked only",All): Boolean` - `GetHistoryStatus(var PreviousExists: Boolean; var NextExists: Boolean)` - `SetVariables(NewTempLineNo: Integer; NewCurrentLevel: Integer)` - `GetVariables(var NewTempLineNo: Integer; var NewCurrentLevel: Integer)` Plus 11 local procedures. ## Triggers OnRun ## 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. - [Page 130 "Posted Sales Shipment"](../page/130.md) (1 call: `ShowDocument → (object)`) - [Page 132 "Posted Sales Invoice"](../page/132.md) (1 call: `ShowDocument → (object)`) - [Page 134 "Posted Sales Credit Memo"](../page/134.md) (1 call: `ShowDocument → (object)`) - [Page 136 "Posted Purchase Receipt"](../page/136.md) (1 call: `ShowDocument → (object)`) - [Page 138 "Posted Purchase Invoice"](../page/138.md) (1 call: `ShowDocument → (object)`) - [Page 140 "Posted Purchase Credit Memo"](../page/140.md) (1 call: `ShowDocument → (object)`) - [Page 38 "Item Ledger Entries"](../page/38.md) (1 call: `ShowDocument → (object)`) - [Page 5743 "Posted Transfer Shipment"](../page/5743.md) (1 call: `ShowDocument → (object)`) - [Page 5745 "Posted Transfer Receipt"](../page/5745.md) (1 call: `ShowDocument → (object)`) - [Page 6650 "Posted Return Shipment"](../page/6650.md) (1 call: `ShowDocument → (object)`) - [Page 6660 "Posted Return Receipt"](../page/6660.md) (1 call: `ShowDocument → (object)`) ## Called by - [Page 6520 "Item Tracing"](../page/6520.md) (8 calls: `FindRecords → ExpandAll`, `FindRecords → FindRecords`, `FindRecords → GetHistoryStatus`, …) - [Codeunit 6500 "Item Tracking Management"](../codeunit/6500.md) (1 call: `ExistingExpirationDate → IsSpecificTracking`) ## Across versions - Present in: BC23-30 - Changed (declaration) in: BC24-26, BC28 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: "Item Tracing Mgt.")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.