---
id: object/codeunit/7234
type: object
title: Codeunit 7234 "MDM Contact Relation Cache"
summary: Codeunit 7234 "MDM Contact Relation Cache" in MasterDataManagement (Microsoft.Integration.MDM). 2 public procedures, 2 event subscribers. 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: 36089520f42ebdca1dc9fc47efa346b9f132e94bc454e18d9b93ef4588b68ba7
evidence:
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/MasterDataManagement/app/src/codeunits/MDMContactRelationCache.Codeunit.al
    title: src/Apps/W1/MasterDataManagement/app/src/codeunits/MDMContactRelationCache.Codeunit.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
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  guidelines: []
  changes:
    - change/bcapps/10753
object_type: codeunit
object_id: 7234
name: MDM Contact Relation Cache
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:
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  procedures: 13
  events: 0
  subscribers: 2
relations:
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  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 1
  called_by: 1
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---

# Codeunit 7234 "MDM Contact Relation Cache"

> Codeunit 7234 "MDM Contact Relation Cache" in MasterDataManagement (Microsoft.Integration.MDM). 2 public procedures, 2 event subscribers. 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/MDMContactRelationCache.Codeunit.al) · facts from BC29

## Properties

| Property | Value |
|---|---|
| Access | Internal |
| SingleInstance | true |

## Event subscriptions

- MarkSyncRunStart subscribes to Codeunit "Integration Master Data Synch." OnBeforeRun
- MarkSyncRunEnd subscribes to Codeunit "Integration Master Data Synch." OnAfterRun

## Procedures

- `TryGetSourceContactNo(LinkToTable: Enum "Contact Business Relation Link To Table"; RelationNo: Code[20]; var SourceContactNo: Code[20]): Boolean`: Resolves the source contact number linked to a customer/vendor/bank account relation.
- `TryGetSourceRelationNo(LinkToTable: Enum "Contact Business Relation Link To Table"; SourceContactNo: Code[20]; var RelationNo: Code[20]): Boolean`: Resolves the source relation number (customer/vendor No.) linked to a source contact.

Plus 9 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 7249 "MDM Cross-Env Data Source"](../codeunit/7249.md) (3 calls: `LoadLinkType → TryBulkGetSourceRecordsByFilter`, `ReadSingleContactNo → GetSourceRecordsByFilter`, `ReadSingleRelationNo → GetSourceRecordsByFilter`)

## Called by

- [Codeunit 7237 "Master Data Mgt. Subscribers"](../codeunit/7237.md) (4 calls: `OnInitContactFromBankAccountOnBeforeAssignNo → TryGetSourceContactNo`, `OnInsertNewContactFromCustomerOnBeforeAssignNo → TryGetSourceContactNo`, `OnInsertNewContactFromVendorOnBeforeAssignNo → TryGetSourceContactNo`, …)

## 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 Contact Relation Cache")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.