Adaptive Cards with Incoming Webhooks in Outlook

Copper Contributor

I am trying create adaptive card on outlook. I created group, I added incoming web hook. Problem is that I get this error message "Summary or Text is required." when I call it from postman. I had same

problem in Teams where I solved it by:

  "type": "message",
  "attachments": [
      "contentUrl": null,
      "contentType": "application/",
      "content": {
        "version": "1.2",
        "$schema": "",
        "type": "AdaptiveCard",
        "body": [
            "type": "TextBlock",
            "text": "For Samples and Templates, see ["
            "url": "",
            "type": "Image"

Problem is that it does not work for outlook. Do you have any idea? What can I do?

Thank you for your help

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