---
id: object/codeunit/7106
type: object
title: Codeunit 7106 "O365 Bidirectional Sync"
summary: Codeunit 7106 "O365 Bidirectional Sync" in Base Application (Microsoft.CRM.Outlook). 4 public procedures. Introduced in BC28, still in BC30.
tier: official
language: en
tags:
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  - base application
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  last_changed: null
  deprecated: null
review:
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    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/CRM/Outlook/O365BidirectionalSync.Codeunit.al
    title: src/Layers/W1/BaseApp/CRM/Outlook/O365BidirectionalSync.Codeunit.al (releases/29.x)
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  changes:
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    - change/bcapps/9966
object_type: codeunit
object_id: 7106
name: O365 Bidirectional Sync
namespace: Microsoft.CRM.Outlook
app: Base Application
extends: null
first_version: "28"
last_version: "30"
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---

# Codeunit 7106 "O365 Bidirectional Sync"

> Codeunit 7106 "O365 Bidirectional Sync" in Base Application (Microsoft.CRM.Outlook). 4 public procedures. Introduced in BC28, still in BC30.

Base Application · Microsoft.CRM.Outlook · BC28-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Layers/W1/BaseApp/CRM/Outlook/O365BidirectionalSync.Codeunit.al) · facts from BC29

## Procedures

- `GetContacts(AccessToken: SecretText; var OutSyncQueue: Record "Contact Sync Queue" temporary; ContactFilterText: Text; FolderId: Text; FullSync: Boolean; var DeltaLink: Text)`
- `GetLastSyncCreatedCount(): Integer`
- `GetContactFolders(AccessToken: SecretText; var OutFolderTable: Record "Contact Sync Folder" temporary)`
- `CreateFolderinO365(accessToken: SecretText; var OutFolderTable: Record "Contact Sync Folder" temporary; FolderName: Text): Text`

Plus 19 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 3060 "Uri"](../codeunit/3060.md) (1 call: `IsApprovedGraphRequestUri → ValidateIntegrationURL`)

## Recent changes

- 2026-08-31 [#10778 [Backport 29.x] Harden Contact Sync delta URL and ownership checks (#9966)](../../changes/bcapps/10778.md) (releases/29.x, BC29, fix)
- 2026-08-27 [#9966 Harden Contact Sync delta URL and ownership checks](../../changes/bcapps/9966.md) (main, BC30, fix)

## Across versions

- Present in: BC28-30
- 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: "O365 Bidirectional Sync")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.