---
id: object/codeunit/6952
type: object
title: Codeunit 6952 "Exp. Attach. Buffer Handler"
summary: Codeunit 6952 "Exp. Attach. Buffer Handler" in ExpenseAgent (Microsoft.ExpenseAgent). 5 public procedures. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - expenseagent
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: d948e87fd1b5a38dc71d1160f28330c1ee6df3b8bc722212940127d163dbe71f
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/ExpenseAgent/app/src/APIs/ExpAttachBufferHandler.Codeunit.al
    title: src/Apps/W1/ExpenseAgent/app/src/APIs/ExpAttachBufferHandler.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/11425
    - change/bcapps/10155
    - change/bcapps/9859
object_type: codeunit
object_id: 6952
name: Exp. Attach. Buffer Handler
namespace: Microsoft.ExpenseAgent
app: ExpenseAgent
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: 10
  events: 0
  subscribers: 0
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 3
  called_by: 3
  implements: 0
---

# Codeunit 6952 "Exp. Attach. Buffer Handler"

> Codeunit 6952 "Exp. Attach. Buffer Handler" in ExpenseAgent (Microsoft.ExpenseAgent). 5 public procedures. Introduced in BC29, still in BC30.

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

## Procedures

- `LoadAttachments(var AttachmentEntityBuffer: Record "Attachment Entity Buffer"; TableID: Integer; SystemIdFilter: Text; AttachmentIdFilter: Text)`
- `PropagateInsertAttachment(var AttachmentEntityBuffer: Record "Attachment Entity Buffer"; var TempFieldBuffer: Record "Field Buffer" temporary; TableId: Integer)`
- `PropagateModifyAttachment(var AttachmentEntityBuffer: Record "Attachment Entity Buffer"; var TempFieldBuffer: Record "Field Buffer" temporary; TableIdForBuffer: Integer)`
- `PropagateDeleteAttachment(var AttachmentEntityBuffer: Record "Attachment Entity Buffer"; TableId: Integer)`
- `ReloadSingleAttachment(var AttachmentEntityBuffer: Record "Attachment Entity Buffer"; var DocumentAttachment: Record "Document Attachment"; TableIdForBuffer: Integer)`

Plus 5 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 419 "File Management"](../codeunit/419.md) (6 calls: `PropagateInsertAttachment → GetExtension`, `PropagateInsertAttachment → GetFileNameWithoutExtension`, `PropagateInsertAttachment → IsValidFileName`, …)
- [Codeunit 4100 "Temp Blob"](../codeunit/4100.md) (3 calls: `TransferToAttachmentBuffer → CreateInStream`, `TransferToAttachmentBuffer → HasValue`, `TransferToAttachmentBuffer → Length`)
- [Codeunit 6989 "Expense Attachment Mgt."](../codeunit/6989.md) (1 call: `PropagateModifyAttachment → RestrictAttachment`)

## Called by

- [Page 6908 "Exp. Rep. Line Attachments API"](../page/6908.md) (5 calls: `OnDeleteRecord → PropagateDeleteAttachment`, `OnFindRecord → LoadAttachments`, `OnInsertRecord → PropagateInsertAttachment`, …)
- [Page 6926 "Posted Exp. Rep. Line Att. API"](../page/6926.md) (5 calls: `OnDeleteRecord → PropagateDeleteAttachment`, `OnFindRecord → LoadAttachments`, `OnInsertRecord → PropagateInsertAttachment`, …)
- [Page 6950 "Expense Attachments API"](../page/6950.md) (5 calls: `OnDeleteRecord → PropagateDeleteAttachment`, `OnFindRecord → LoadAttachments`, `OnInsertRecord → PropagateInsertAttachment`, …)

## Recent changes

- 2026-09-15 [#11425 Bug 650137: [29.x] Expense Locations and Per-diem rules in configuration - Backport](../../changes/bcapps/11425.md) (releases/29.x, BC29, feature)
- 2026-09-10 [#10155 Slice 641293: [Expense Agent] Expense Locations and Per-diem rules in configurationAdded more locations](../../changes/bcapps/10155.md) (main, BC30, feature)
- 2026-08-04 [#9859 [Master] - Move Expense Agent (Preview) app into BCApps](../../changes/bcapps/9859.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: "Exp. Attach. Buffer Handler")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.