Error while running Teams workflow for sending message to a channel by triggering webhook

psrujan , instead of using "Post message in a chat or channel", we used "Post card in a chat or channel " action by using below JSON and the card got posted successfully in card format.

Card JSON:

("When a Teams webhook request is received" trigger does not support actionable messages, unlike deprecated Office Webhooks.)

{
  "type": "message",
  "attachments": [
    {
      "contentType": "application/vnd.microsoft.card.adaptive",
      "content": {
        "type": "AdaptiveCard",
        "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
        "version": "1.4",
        "body": [
          {
            "type": "TextBlock",
            "text": "Test Report",
            "weight": "bolder",
            "size": "large",
            "wrap": true,
            "color": "accent",
            "horizontalAlignment": "center"
          },
          {
            "type": "ColumnSet",
            "columns": [
              {
                "type": "Column",
                "width": "auto",
                "items": [
                  {
                    "type": "TextBlock",
                    "text": "**Record:** Basics\n**TestCases:** PassOrFail",
                    "wrap": true
                  }
                ]
              },
              {
                "type": "Column",
                "width": "stretch",
                "items": [
                  {
                    "type": "TextBlock",
                    "text": "**Test Results:**\n\n**Passed:** <testsPassed>\n**Failed:** <testsFailed>\n**Total:** <totalTests>",
                    "wrap": true
                  }
                ]
              }
            ]
          },
		  {
            "type": "FactSet",
            "facts": [
              {
                "title": "Records:",
                "value": "Basic"
              },
              {
                "title": "TestCases:",
                "value": "PassOrFail"
              },
              {
                "title": "Passed:",
                "value": "<testsPassed>"
              },
              {
                "title": "Failed:",
                "value": "<testsFailed>"
              },
              {
                "title": "Total:",
                "value": "<totalTests>"
              }
            ]
          }
		]
      }
    }
  ]
}

 Result:

MattJ1810 , glad to hear that it worked. Could you please share your valuable feedback via Microsoft Teams Developer Community Response Feedback link?

kidhexa , can you please share the exact error message you are getting? In which action the flow is failing?