---
id: object/table/404
type: object
title: Table 404 "Change Log Setup (Field)"
summary: Table 404 "Change Log Setup (Field)" in Base Application (System.Diagnostics). 9 fields. Present since at least BC23, still in BC30, changed in BC24.
tier: official
language: en
tags:
  - table
  - base application
versions:
  introduced: null
  last_changed: "24"
  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: b5181b06333c7f3182fdcef13cbb9318c5415edb113cd11461f20507b54be649
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/System/ChangeLog/ChangeLogSetupField.Table.al
    title: src/Layers/W1/BaseApp/System/ChangeLog/ChangeLogSetupField.Table.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn:
    - https://learn.microsoft.com/dynamics365/business-central/across-log-changes
    - https://learn.microsoft.com/dynamics365/business-central/admin-data-retention-policies
  objects: []
  features: []
  topics:
    - topic/business-central/development-and-administration/administration-tasks-in-business-central/control-your-data
    - topic/dev-itpro/security-privacy-and-compliance/auditing
  localizations: []
  videos: []
  posts: []
  guidelines: []
object_type: table
object_id: 404
name: Change Log Setup (Field)
namespace: System.Diagnostics
app: Base Application
extends: null
first_version: "23"
last_version: "30"
present_in:
  - "23"
  - "24"
  - "25"
  - "26"
  - "27"
  - "28"
  - "29"
  - "30"
changed_in:
  - "24"
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 9
  procedures: 0
  events: 0
  subscribers: 0
relations:
  out: 1
  referenced_by: 0
  pages: 1
  extended_by: 0
  event_subscribers: 6
  calls: 1
  called_by: 0
  implements: 0
---

# Table 404 "Change Log Setup (Field)"

> Table 404 "Change Log Setup (Field)" in Base Application (System.Diagnostics). 9 fields. Present since at least BC23, still in BC30, changed in BC24.

Base Application · System.Diagnostics · BC23-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/System/ChangeLog/ChangeLogSetupField.Table.al) · facts from BC29

Learn documents this table through its pages: [Page 1369 "Monitored Fields Worksheet"](../page/1369.md) (2 Learn pages).

## Properties

| Property | Value |
|---|---|
| Caption | Change Log Setup (Field) |
| DataClassification | CustomerContent |

## 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 |
|---|---|---|---|---|
| 1 | Table No. | Integer | — | TableRelation [Table 403 "Change Log Setup (Table)"](../table/403.md) (Change Log Setup (Table)) |
| 2 | Field No. | Integer | Specifies the identifier of the monitored field. <small>via [Page 1369 "Monitored Fields Worksheet"](../page/1369.md)</small> | TableRelation Field."No." where(TableNo = field("Table No.")) |
| 3 | Field Caption | Text[100] | Specifies the name of the monitored field. <small>via [Page 1369 "Monitored Fields Worksheet"](../page/1369.md)</small> | FlowField: lookup(Field."Field Caption" where(TableNo = field("Table No."), "No." = field("Field No."))) |
| 4 | Log Insertion | Boolean | — |  |
| 5 | Log Modification | Boolean | — |  |
| 6 | Log Deletion | Boolean | — |  |
| 7 | Monitor Sensitive Field | Boolean | — | DataClassification SystemMetadata |
| 8 | Notify | Boolean | Specifies whether to send an email notification when the value in this monitored field is changed. The email is sent to the recipient specified on the Field Monitoring Setup page. <small>via [Page 1369 "Monitored Fields Worksheet"](../page/1369.md)</small> | DataClassification SystemMetadata |
| 9 | Table Caption | Text[250] | Specifies the name of the table that includes the monitored field. <small>via [Page 1369 "Monitored Fields Worksheet"](../page/1369.md)</small> | FlowField: lookup(AllObjWithCaption."Object Caption" where("Object Type" = const(Table), "Object ID" = field("Table No."))) |

## Keys

- Key1: Table No., Field No. (clustered)

## Trigger event subscribers

- OnAfterDeleteEvent: [Codeunit 1367 "Monitor Sensitive Field Data"](../codeunit/1367.md) OnAfterDeleteMonitoredField, [Codeunit 423 "Change Log Management"](../codeunit/423.md) OnAfterDeleteChangeLogSetupField
- OnAfterInsertEvent: [Codeunit 1367 "Monitor Sensitive Field Data"](../codeunit/1367.md) OnAfterInsertMonitoredField, [Codeunit 423 "Change Log Management"](../codeunit/423.md) OnAfterInsertChangeLogSetupField
- OnAfterModifyEvent: [Codeunit 423 "Change Log Management"](../codeunit/423.md) OnAfterModifyChangeLogSetupField
- OnAfterRenameEvent: [Codeunit 423 "Change Log Management"](../codeunit/423.md) OnAfterRenameChangeLogSetupField

## Triggers

OnDelete, OnRename

## Relations

- Table No.: TableRelation [Table 403 "Change Log Setup (Table)"](../table/403.md)

## Pages and codeunits on this table

- [Page 1369 "Monitored Fields Worksheet"](../page/1369.md) (source table)

## 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 1392 "Monitor Sensitive Field"](../codeunit/1392.md) (3 calls: `OnDelete → DeleteChangeLogSetupTable`, `OnRename → DeleteChangeLogSetupTable`, `OnRename → InsertChangeLogSetupTable`)

## Across versions

- Present in: BC23-30
- Changed (declaration) in: BC24

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: "table", object_name: "Change Log Setup (Field)")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.