---
id: object/codeunit/4311
type: object
title: Codeunit 4311 "Agent Task Msg. Builder Impl."
summary: Codeunit 4311 "Agent Task Msg. Builder Impl." in System Application (System.Agents). 23 public procedures. Introduced in BC26, still in BC30, changed in BC27-29.
tier: official
language: en
tags:
  - codeunit
  - system application
versions:
  introduced: "26"
  last_changed: "29"
  deprecated: null
review:
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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/Agent/Interaction/Internal/AgentTaskMsgBuilderImpl.Codeunit.al
    title: src/System Application/App/Agent/Interaction/Internal/AgentTaskMsgBuilderImpl.Codeunit.al (releases/29.x)
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object_type: codeunit
object_id: 4311
name: Agent Task Msg. Builder Impl.
namespace: System.Agents
app: System Application
extends: null
first_version: "26"
last_version: "30"
present_in:
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  - "27"
  - "28"
  - "29"
  - "30"
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  - "28"
  - "29"
source_major: "29"
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  procedures: 24
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---

# Codeunit 4311 "Agent Task Msg. Builder Impl."

> Codeunit 4311 "Agent Task Msg. Builder Impl." in System Application (System.Agents). 23 public procedures. Introduced in BC26, still in BC30, changed in BC27-29.

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

## Properties

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

## Procedures

- `Initialize(MessageText: Text): codeunit "Agent Task Msg. Builder Impl."`
- `Initialize(From: Text[250]; MessageText: Text): codeunit "Agent Task Msg. Builder Impl."`
- `SetRequiresReview(RequiresReview: Boolean): codeunit "Agent Task Msg. Builder Impl."`
- `SetIgnoreAttachment(IgnoreAttachment: Boolean): codeunit "Agent Task Msg. Builder Impl."`
- `SetSkipMessageSanitization(SkipSanitizeMessage: Boolean): codeunit "Agent Task Msg. Builder Impl."`
- `SetMessageExternalID(ExternalId: Text[2048]): codeunit "Agent Task Msg. Builder Impl."`
- `SetAgentTask(ParentAgentTask: Record "Agent Task"): codeunit "Agent Task Msg. Builder Impl."`
- `SetAgentTask(ParentAgentTaskID: BigInteger): codeunit "Agent Task Msg. Builder Impl."`
- `Create(): Record "Agent Task Message"`
- `Create(SetTaskStatusToReady: Boolean): Record "Agent Task Message"`
- `GetAgentTaskMessage(): Record "Agent Task Message"`
- `AddAttachment(FileName: Text[250]; FileMIMEType: Text[100]; InStream: InStream): codeunit "Agent Task Msg. Builder Impl."`
- `AddAttachment(FileName: Text[250]; FileMIMEType: Text[100]; InStream: InStream; Ignored: Boolean): codeunit "Agent Task Msg. Builder Impl."`
- `AddAttachment(FileName: Text[250]; FileMIMEType: Text[100]; InStream: InStream; Ignored: Boolean; IgnoredReason: Text[250]): codeunit "Agent Task Msg. Builder Impl."`
- `AddAttachment(var AgentTaskFile: Record "Agent Task File"): codeunit "Agent Task Msg. Builder Impl."`
- `AddAttachment(File: FileUpload): codeunit "Agent Task Msg. Builder Impl."`
- `AddAttachment(File: FileUpload; Ignored: Boolean): codeunit "Agent Task Msg. Builder Impl."`
- `AddAttachment(File: FileUpload; Ignored: Boolean; IgnoredReason: Text[250]): codeunit "Agent Task Msg. Builder Impl."`
- `UploadAttachment(): Boolean`
- `GetLastAttachment(): Record "Agent Task File"`
- `GetAttachments(var TempAttachments: record "Agent Task File" temporary): Boolean`
- `GetContentTypeFromFilename(FileName: Text): Text[250]`
- `SanitizeMessage(MessageBody: Text): Text` (internal)

Plus 1 local procedures.

## 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 4316 "Agent Task Message Builder"](../codeunit/4316.md) (12 calls: `AddAttachment → AddAttachment`, `Create → Create`, `GetAgentTaskMessage → GetAgentTaskMessage`, …)

## Across versions

- Present in: BC26-30
- Changed (declaration) in: BC27-29

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: "Agent Task Msg. Builder Impl.")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.