Message POST is allowed in application-only context only for import purposes

Question

Message POST is allowed in application-only context only for import purposes

Nirmallya Ghosh 20

I am trying to send message to teams Channel but i am getting below error -

Can anyone please help ?

RESPONSE -


{
    "error": {
        "code": "Unauthorized",
        "message": "Message POST is allowed in application-only context only for import purposes. Refer to https://docs.microsoft.com/microsoftteams/platform/graph-api/import-messages/import-external-messages-to-teams for more details.",
        "innerError": {
            "date": "2023-05-30T04:07:23",
            "request-id": "14e70f9f-46f4-45dc-99ab-2bb0094ded3f",
            "client-request-id": "14e70f9f-46f4-45dc-99ab-2bb0094ded3f"
        }
    }
}

ACCESS TOKEN -


curl --location 'https://login.microsoftonline.com/64c0b******c-99c6-e***ac44/oauth2/v2.0/token' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'client_id=8c4d5231-e***********3f8e1d9c' \
--data-urlencode 'scope=https://graph.microsoft.com/.default' \
--data-urlencode 'client_secret=VfS8************n2PLhcqjcRC' \
--data-urlencode 'grant_type=client_credentials'

cURL for Sending Message to Teams Channel -

curl --location 'https://graph.microsoft.com/v1.0/teams/0c1a5839**********-abdd-bb5772cf50ee/channels/1**********c7872b9bb@thread.tacv2/messages' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer accessToken

JimmyYang-MSFT 58,576 Reputation points Microsoft External Staff

2023-05-30T06:04:11.3833333+00:00

Hi @Nirmallya Ghosh

Teams tag is mainly focused on the general issue of Microsoft Teams troubleshooting. According to your description, your issue is not in our support scope. So I will remove teams tag from your thread. Thanks for your understanding!

2 answers

Your answer

JimmyYang-MSFT 58,576 Reputation points Microsoft External Staff

2023-05-30T06:04:11.3833333+00:00

Hi @Nirmallya Ghosh

Teams tag is mainly focused on the general issue of Microsoft Teams troubleshooting. According to your description, your issue is not in our support scope. So I will remove teams tag from your thread. Thanks for your understanding!

Answer 1

CarlZhao-MSFT 46,341

Hi @Nirmallya Ghosh

Application permissions are only supported for migration, which means you need to use application permissions to create a team and channel in a migration state, and then import third-party platform messages into the team.

If your context is just sending chat messages in a channel, then use delegated permissions instead.

User's image

Hope this helps.

If the reply is helpful, please click Accept Answer and kindly upvote it. If you have additional questions about this answer, please click Comment.

Nirmallya Ghosh 20 Reputation points

2023-05-30T12:59:20.66+00:00
@CarlZhao - What changes i need to make in request ?

Below Body I am sending for posting message -

Please help

{ "body": { "content": "Hello World" } }
CarlZhao-MSFT 46,341 Reputation points

2023-05-31T02:45:26.8533333+00:00

Hi @Nirmallya Ghosh

If you are trying to send messages to a team channel instead of importing third-party platform messages, then you should use delegated permissions instead of application permissions, as application permissions are only available in migrations.
Nirmallya Ghosh 20 Reputation points

2023-05-31T02:50:31.76+00:00

@CarlZhao-MFST

What will be the postman curl for this ? I should be able to call this via api

CarlZhao-MSFT 46,341

Hi @Nirmallya Ghosh

Try granting your app the following delegated permissions:

User's image

Then change curl to:

curl --location 'https://login.microsoftonline.com/64c0b******c-99c6-e***ac44/oauth2/v2.0/token' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--data-urlencode 'client_id=8c4d5231-e***********3f8e1d9c' \
--data-urlencode 'scope=https://graph.microsoft.com/.default' \
--data-urlencode 'username=**********' \
--data-urlencode 'password=**********' \
--data-urlencode 'grant_type=password'

CarlZhao-MSFT 46,341 Reputation points

2023-06-01T08:29:26.4666667+00:00

Hi @Nirmallya Ghosh

I am checking to see if this issue is resolved or not. If you have any concerns, please feel free to reply :)

Idan Gazit 0

I have the same issue. I am delegated
ChannelMessage.Send and still getting this error

"message": "Message POST is allowed in application-only context only for import purposes. Refer to https://docs.microsoft.com/microsoftteams/platform/graph-api/import-messages/import-external-messages-to-teams for more details.",

Answer 2

Suryadi Uganda 0

{"error":{"code":"Unauthorized","message":"Message POST is allowed in application-only context only for import purposes. Refer to https://docs.microsoft.com/microsoftteams/platform/graph-api/import-messages/import-external-messages-to-teams for more details.","innerError":{"date":"2025-03-24T09:23:35","request-id":"bbe089bf-b515-4a0c-8be4-580137ddf39d","client-request-id":"bbe089bf-b515-4a0c-8be4-580137ddf39d"}}}

if i have to subscribe something in microsoft to enable API send chat with teams, which subject or title of subsribe ? and which permissions i have to enabled ?

Marten Theunissen 676 Reputation points

2025-03-24T09:36:56.12+00:00
Good day,

See below, please advise if this was helpful.

Steps to Resolve the Issue

Use Delegated Permissions:

Ensure your application is using delegated permissions (User.Read, Group.ReadWrite.All, ChannelMessage.Send) instead of application permissions.

Delegated permissions require a user context, meaning the user must be signed in and consent to the permissions.

Modify Your API Request:

Update your API request to use delegated permissions. Here’s an example of how to obtain an access token with delegated permissions:

curl --location 'https://login.microsoftonline.com/{tenant-id}/oauth2/v2.0/token' \

--header 'Content-Type: application/x-www-form-urlencoded' \

--data-urlencode 'client_id={client-id}' \

--data-urlencode 'scope=https://graph.microsoft.com/.default' \

--data-urlencode 'client_secret={client-secret}' \

--data-urlencode 'grant_type=password' \

--data-urlencode 'username={username}' \

--data-urlencode 'password={password}'

Send Messages with Delegated Permissions:

Use the obtained access token to send messages in Teams channels:

curl --location 'https://graph.microsoft.com/v1.0/teams/{team-id}/channels/{channel-id}/messages' \

--header 'Content-Type: application/json' \

--header 'Authorization: Bearer {access-token}' \

--data '{

"body": {

"content": "Hello world"

}

}'

Share via

Message POST is allowed in application-only context only for import purposes

2 answers

Your answer