---
id: object/codeunit/4421
type: object
title: Codeunit 4421 "SOA Attachment MLLM"
summary: Codeunit 4421 "SOA Attachment MLLM" in SalesOrderAgent (Microsoft.Agent.SalesOrderAgent). 1 public procedures. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - salesorderagent
versions:
  introduced: "29"
  last_changed: null
  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: 5284d4a89c86177f945376dc9280c47605b2e7c30292b4fb2826e66ef9f2ace5
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/SalesOrderAgent/app/src/Integration/SOAAttachmentMLLM.Codeunit.al
    title: src/Apps/W1/SalesOrderAgent/app/src/Integration/SOAAttachmentMLLM.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn: []
  objects: []
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
  changes:
    - change/bcapps/11375
    - change/bcapps/10665
    - change/bcapps/10287
    - change/bcapps/9910
object_type: codeunit
object_id: 4421
name: SOA Attachment MLLM
namespace: Microsoft.Agent.SalesOrderAgent
app: SalesOrderAgent
extends: null
first_version: "29"
last_version: "30"
present_in:
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 12
  events: 0
  subscribers: 0
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 9
  called_by: 1
  implements: 0
---

# Codeunit 4421 "SOA Attachment MLLM"

> Codeunit 4421 "SOA Attachment MLLM" in SalesOrderAgent (Microsoft.Agent.SalesOrderAgent). 1 public procedures. Introduced in BC29, still in BC30.

SalesOrderAgent · Microsoft.Agent.SalesOrderAgent · BC29-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/SalesOrderAgent/app/src/Integration/SOAAttachmentMLLM.Codeunit.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Access | Internal |
| Permissions | tabledata "Agent Task File" = r, tabledata "Agent Task Message Attachment" = rM |

## Procedures

- `EnsureCanonicalTextContent(var AgentTaskMessageAttachment: Record "Agent Task Message Attachment"; var CanonicalContent: Text; var FailureReason: Text): Boolean` (internal)

Plus 11 local procedures.

## 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 7761 "AOAI Chat Completion Params"](../codeunit/7761.md) (3 calls: `TryExtractAttachmentContent → SetJsonMode`, `TryExtractAttachmentContent → SetMaxTokens`, `TryExtractAttachmentContent → SetTemperature`)
- [Codeunit 7770 "AOAI Operation Response"](../codeunit/7770.md) (3 calls: `TryExtractAttachmentContent → GetResult`, `TryExtractAttachmentContent → GetStatusCode`, `TryExtractAttachmentContent → IsSuccess`)
- [Codeunit 7771 "Azure OpenAI"](../codeunit/7771.md) (3 calls: `TryExtractAttachmentContent → GenerateChatCompletion`, `TryExtractAttachmentContent → SetAuthorization`, `TryExtractAttachmentContent → SetCopilotCapability`)
- [Codeunit 7763 "AOAI Chat Messages"](../codeunit/7763.md) (2 calls: `TryExtractAttachmentContent → AddUserMessage`, `TryExtractAttachmentContent → SetPrimarySystemMessage`)
- [Codeunit 7783 "AOAI User Message"](../codeunit/7783.md) (2 calls: `TryExtractAttachmentContent → AddFilePart`, `TryExtractAttachmentContent → AddTextPart`)
- [Codeunit 2200 "Azure Key Vault"](../codeunit/2200.md) (1 call: `TryExtractAttachmentContent → GetAzureKeyVaultSecret`)
- [Codeunit 4110 "Base64 Convert"](../codeunit/4110.md) (1 call: `TryExtractAttachmentContent → ToBase64`)
- [Codeunit 4400 "SOA Setup"](../codeunit/4400.md) (1 call: `IsImageAttachment → IsImageAttachmentContentType`)
- [Codeunit 7768 "AOAI Deployments"](../codeunit/7768.md) (1 call: `TryExtractAttachmentContent → GetGPT56CeresPreview`)

## Called by

- [Codeunit 4399 "SOA Annotation"](../codeunit/4399.md) (1 call: `ProcessAttachmentForRelevance → EnsureCanonicalTextContent`)

## Recent changes

- 2026-09-23 [#11375 Obsolete GPT-5.5 chat and add GPT-5.6 Ceres deployments](../../changes/bcapps/11375.md) (main, BC30, obsoletion)
- 2026-08-27 [#10665 [SOA] Skip content extraction for image attachments](../../changes/bcapps/10665.md) (main, BC30, fix)
- 2026-08-17 [#10287 Move SOA item search and attachment extraction to GPT-5.5 deployments](../../changes/bcapps/10287.md) (main, BC30, other)
- 2026-08-15 [#9910 [SOA] Move attachment processing to direct model reading](../../changes/bcapps/9910.md) (main, BC30, feature, added)

## Across versions

- Present in: BC29-30
- Changed (declaration) in: none

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: "SOA Attachment MLLM")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.