---
id: object/codeunit/7241
type: object
title: Codeunit 7241 "MDM Cross-Env Source API"
summary: Codeunit 7241 "MDM Cross-Env Source API" in MasterDataManagement (Microsoft.Integration.MDM). 3 public procedures, 1 events. Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - codeunit
  - masterdatamanagement
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: 69fb503c4d7e8c8d590da9fd567aea9bd8e2040eb823ffd5254a798aa52d0e62
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/MasterDataManagement/app/src/codeunits/MDMCrossEnvSourceAPI.Codeunit.al
    title: src/Apps/W1/MasterDataManagement/app/src/codeunits/MDMCrossEnvSourceAPI.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn: []
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  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
  changes:
    - change/bcapps/10753
object_type: codeunit
object_id: 7241
name: MDM Cross-Env Source API
namespace: Microsoft.Integration.MDM
app: MasterDataManagement
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: 37
  events: 1
  subscribers: 0
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 3
  called_by: 0
  implements: 0
---

# Codeunit 7241 "MDM Cross-Env Source API"

> Codeunit 7241 "MDM Cross-Env Source API" in MasterDataManagement (Microsoft.Integration.MDM). 3 public procedures, 1 events. Introduced in BC29, still in BC30.

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

## Properties

| Property | Value |
|---|---|
| Access | Public |

## Events published

- `OnGetMaxPageInlineBytes(var MaxBytes: Integer)` (internal)

## Procedures

- `GetCapabilities(): Text`: Wire-version negotiation: returns the API contract version and the action/feature names this source supports, so a newer subsidiary only calls actions an older source actually implements.
- `GetRecords(TableId: Integer; FieldIds: Text; Selector: Text; PageSize: Integer; Filter: Text): Text`: Returns a page of changed source records for the given table. FieldIds is a JSON array of field numbers. Selector is either a change-feed cursor { modifiedAt, systemId } or a targeted { systemIds } list. Response carries records, hasMore and (cursor mode) nextCursor. The table read runs under the CA...
- `LastModifiedAtPerTable(TableIds: Text): Text`: Change detection: for each requested table id, returns its latest source modification timestamp so the subsidiary detector can decide which per-table sync jobs to reschedule. Read from the change-feed index tip (FindLast), so no scan and no summary table to maintain.

Plus 33 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 4100 "Temp Blob"](../codeunit/4100.md) (4 calls: `BuildBlobValue → CreateInStream`, `BuildBlobValue → FromFieldRef`, `BuildBlobValue → HasValue`, …)
- [Codeunit 4110 "Base64 Convert"](../codeunit/4110.md) (2 calls: `BuildBlobValue → ToBase64`, `BuildMediaValue → ToBase64`)
- [Codeunit 7242 "MDM Privacy Notice"](../codeunit/7242.md) (1 call: `IsSourceConsented → IsApproved`)

## Recent changes

- 2026-09-10 [#10753 Cross-environment Master Data synchronization (same tenant)](../../changes/bcapps/10753.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: "MDM Cross-Env Source API")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.