[Doc Feature] [ADO 4595639] New Draft for Migrating External Message to Teams #13193

NehaHEDAU-MSFT · 2025-08-01T11:11:06Z

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microsoft-production-github-app · 2025-08-01T11:11:18Z

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learn-build-service-prod · 2025-08-01T11:12:15Z

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microsoft-production-github-app · 2025-08-01T13:50:12Z

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microsoft-github-policy-service · 2025-08-01T13:50:14Z

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learn-build-service-prod · 2025-08-01T13:51:11Z

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Line 11, Column 1: [Warning: duplicate-h1s - See documentation] H1 'Import third-party platform messages to Teams using Microsoft Graph' is duplicated with other articles: 'graph-api/import-messages/import-external-messages-to-teams.md(11,1), graph-api/import-messages/new-draft-external-messages-to-teams.md(2,1)'. First level headings must be unique within a docset.

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

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microsoft-production-github-app · 2025-08-01T14:29:27Z

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learn-build-service-prod · 2025-08-01T14:30:27Z

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microsoft-production-github-app · 2025-08-01T14:42:17Z

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learn-build-service-prod · 2025-08-01T14:46:13Z

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Line 1, Column 1: [Suggestion: ms-date-missing - See documentation] Missing required attribute: 'ms.date'.
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microsoft-production-github-app · 2025-08-01T14:54:00Z

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learn-build-service-prod · 2025-08-01T14:56:30Z

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Line 1, Column 1: [Suggestion: ms-date-missing - See documentation] Missing required attribute: 'ms.date'.
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microsoft-production-github-app · 2025-08-01T15:08:20Z

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learn-build-service-prod · 2025-08-01T15:09:32Z

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microsoft-production-github-app · 2025-08-04T16:41:43Z

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learn-build-service-prod · 2025-08-04T16:42:41Z

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microsoft-production-github-app · 2025-08-04T17:01:18Z

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learn-build-service-prod · 2025-08-04T17:04:00Z

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learn-build-service-prod · 2025-08-06T17:46:28Z

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microsoft-production-github-app · 2025-08-06T17:46:59Z

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Reorganized content to include the startMigration Api for both channels and chats as step1

microsoft-production-github-app · 2025-08-07T03:29:32Z

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learn-build-service-prod · 2025-08-07T03:32:02Z

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microsoft-production-github-app · 2025-08-07T09:40:03Z

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learn-build-service-prod · 2025-08-07T09:41:02Z

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microsoft-production-github-app · 2025-08-07T17:29:34Z

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learn-build-service-prod · 2025-08-07T17:30:36Z

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AjayJ12-MSFT · 2025-08-12T09:25:47Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+
+# Use Microsoft Graph to Import Messages from External Platforms to Teams
+
+You can use Microsoft Graph to migrate users' existing message history and data from an external system into a Teams channel. This feature enables users to continue conversations without interruption, by recreating the messaging hierarchy from a third-party platform directly within Teams.


Fix the users' word

AjayJ12-MSFT · 2025-08-12T15:07:12Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+
+## Step-by-Step Migration Flow
+
+1. ### Create or select a channel/chat


Check this numbered list doesn't look right

learn-build-service-prod · 2025-08-29T01:48:20Z

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microsoft-production-github-app · 2025-08-29T01:49:14Z

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learn-build-service-prod · 2025-08-29T02:20:08Z

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mehakagarwal · 2025-09-02T18:41:09Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+
+# Use Microsoft Graph to Import Messages from External Platforms to Teams
+
+You can use Microsoft Graph to migrate existing message history and data from an external system into a Teams channel. This feature enables users to continue conversations without interruption, by recreating the messaging hierarchy from a third-party platform directly within Teams.


You can use Microsoft Graph to migrate existing message history and data from an external system into a Teams .

mehakagarwal · 2025-09-02T18:42:42Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+
+You can either create a new channel or chat in a Team or use an existing channel or chat.
+
+> [!NOTE]


instead of keeping this as note, make a permission table.

mehakagarwal · 2025-09-02T18:43:23Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+> [!NOTE]
+> All APIs listed in the following sections require the `Teamswork.Migrate.All` permission in the application context. Delegated authentication isn't supported.
+
+### 2. Use startMigration API to start channel and chat migration


Use startMigration API to bring chat or channel into migration mode.

mehakagarwal · 2025-09-02T18:46:30Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+
+For both channels and chats, if the request is successful, the method returns a **204 No Content** status code. The response body is empty.
+
+**Example of a request**:


don't club the response, if needed, create 2 subpages 1 for chat and 1 for channel. or create 2 sub sections within this page . Keep all channels API's together , and then keep all Chat API's together.

mehakagarwal · 2025-09-02T18:50:47Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+>   * Greater than the minimum value for `DateTimeOffset`.
+>   * Less than the current value of the channel or chat's `CreatedDateTime`.
+
+### 3. Call the GET /channel/chat API to confirm that the **migrationMode** property is set to **inProgress**, after completing step 2


give example, of paste link to GetChat API

https://learn.microsoft.com/en-us/graph/api/channel-get?view=graph-rest-1.0&tabs=http

mehakagarwal · 2025-09-02T18:53:54Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+POST /chats/{chat-id}/completeMigration 
+```
+
+> [!IMPORTANT]


this does not need IMPORTANT tag.

mehakagarwal · 2025-09-02T18:55:18Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+> In Migration Mode:
+>
+> * Certain operations such as sending messages and adding members are restricted.
+> * Calling the completeMigration API means that channel or chat migration is complete and normal operations can resume.


this does not apply here. Normal operations are still valid. Please remove this

mehakagarwal · 2025-09-02T18:55:35Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+> [!IMPORTANT]
+> Don't include a request body when calling this method for channels or chats. If the request is successful, the method returns a 204 No Content status code. The response body is empty.
+>
+> [!NOTE]


this does not apply here. Normal operations are still valid. Please remove this

mehakagarwal · 2025-09-02T18:56:15Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+> * Certain operations such as sending messages and adding members are restricted.
+> * Calling the completeMigration API means that channel or chat migration is complete and normal operations can resume.
+
+#### Supported channel or chat types


move this section up, after Permissions table .

mehakagarwal · 2025-09-02T18:56:24Z

msteams-platform/graph-api/import-messages/new-draft-external-messages-to-teams.md

+|**Channels**   |  General, Standard, Private, Shared   | New and existing  |  Must be created or already in migration mode    |
+|**Chats**    |   Group, One-on-one (1:1)   | New and existing  | Meeting chats not supported; external members supported        |
+
+### 6. Call the GET /channel/chat API to verify that the migrationMode property is marked as **completed**


same give example

Created a new draft for migrating external message to Teams

707f98b

NehaHEDAU-MSFT requested review from ChetanSharma-msft and AjayJ12-MSFT August 1, 2025 11:13

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Update new-draft-external-messages-to-teams.md

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Reorganized content to include the startMigration Api for both channels and chats as step1

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		# Use Microsoft Graph to Import Messages from External Platforms to Teams

		You can use Microsoft Graph to migrate users' existing message history and data from an external system into a Teams channel. This feature enables users to continue conversations without interruption, by recreating the messaging hierarchy from a third-party platform directly within Teams.


		## Step-by-Step Migration Flow

		1. ### Create or select a channel/chat


		You can either create a new channel or chat in a Team or use an existing channel or chat.

		> [!NOTE]


		For both channels and chats, if the request is successful, the method returns a 204 No Content status code. The response body is empty.

		Example of a request:

[Doc Feature] [ADO 4595639] New Draft for Migrating External Message to Teams #13193

Are you sure you want to change the base?

[Doc Feature] [ADO 4595639] New Draft for Migrating External Message to Teams #13193

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