This is an example payload to be send to an MS Teams webhook URL.

webhookpayload.json

{
    "@type": "MessageCard",
    "@context": "https://schema.org/extensions",
    "summary": "ADF Alert",
    "themeColor": "eb3434",
    "title": "Azure DataFactory notification alert!",
    "sections": [
        {
            "activityTitle": "Pipeline failed",
            "activitySubtitle": "UTC: $timestamp_of_failure$",
            "activityImage": "https://azurebloggingresources.blob.core.windows.net/images/error-red-cross.png",
            "facts": [
                {
                    "name": "Data Factory:",
                    "value": "$adf_name$"
                },
                {
                    "name": "Pipeline",
                    "value": "$pipeline_name$"
                },
                {
                    "name": "Run ID",
                    "value": "$pipeline_run_id$"
                }
            ],
            "text": "<error_message>"
        }
    ],
    "potentialAction": [
        {
            "@type": "OpenUri",
            "name": "Go to Pipeline Run",
            "targets": [
                {
                    "os": "default",
                    "uri": "https://adf.azure.com"
                }
            ]
        }
    ]
}