---
id: object/codeunit/3112
type: object
title: Codeunit 3112 "Activity Log Builder Impl."
summary: Codeunit 3112 "Activity Log Builder Impl." in System Application (System.Log). 9 public procedures. Introduced in BC26, still in BC30, changed in BC27-28.
tier: official
language: en
tags:
  - codeunit
  - system application
versions:
  introduced: "26"
  last_changed: "28"
  deprecated: null
review:
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  by: null
  at: null
  flags: []
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  at: "2026-10-11T00:31:51.816Z"
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/System%20Application/App/ActivityLog/src/ActivityLogBuilderImpl.Codeunit.al
    title: src/System Application/App/ActivityLog/src/ActivityLogBuilderImpl.Codeunit.al (releases/29.x)
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object_type: codeunit
object_id: 3112
name: Activity Log Builder Impl.
namespace: System.Log
app: System Application
extends: null
first_version: "26"
last_version: "30"
present_in:
  - "26"
  - "27"
  - "28"
  - "29"
  - "30"
changed_in:
  - "27"
  - "28"
source_major: "29"
obsolete: null
countries: []
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counts:
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  procedures: 9
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  subscribers: 0
relations:
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  referenced_by: 0
  pages: 0
  extended_by: 0
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  calls: 0
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---

# Codeunit 3112 "Activity Log Builder Impl."

> Codeunit 3112 "Activity Log Builder Impl." in System Application (System.Log). 9 public procedures. Introduced in BC26, still in BC30, changed in BC27-28.

System Application · System.Log · BC26-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/System%20Application/App/ActivityLog/src/ActivityLogBuilderImpl.Codeunit.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Access | Internal |

## Procedures

- `Init(TableNo: Integer; FieldNo: Integer; RecSystemId: Guid): Codeunit "Activity Log Builder Impl."`
- `SetExplanation(Explanation: Text): Codeunit "Activity Log Builder Impl."`
- `SetType(Type: Enum "Activity Log Type"): Codeunit "Activity Log Builder Impl."`
- `SetReferenceSource(PageId: Integer; var Rec: RecordRef): Codeunit "Activity Log Builder Impl."`
- `SetReferenceSource(ReferenceSource: Text): Codeunit "Activity Log Builder Impl."`
- `SetConfidence(Confidence: Text): Codeunit "Activity Log Builder Impl."`
- `SetReferenceTitle(ReferenceTitle: Text): Codeunit "Activity Log Builder Impl."`
- `Log()`
- `Query(TableNo: Integer; RecSystemId: Guid): Text`

## Called by

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 3111 "Activity Log Builder"](../codeunit/3111.md) (8 calls: `Init → Init`, `Log → Log`, `Query → Query`, …)

## 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). 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: "Activity Log Builder Impl.")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.