Hi All.

Below are the steps to send a Slack Message using External APIs.

Step 1: Create a connection in Connectors 2.0 using the Custom Connector

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Step 2: Go to Administrator → External Actions

There you can see all the connection names which we created in Step 1

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Step 3: Click on “Create Action”. It will ask you to choose the connector.

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Step 4: Provide a Action Name. And in the POST URL we have to provide the Webhooks URL for your Slack Group to where you want to Post the Message.

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The POST Url will vary from Group to Group

Step 5: In the Payload section wirte a JSON code in which format you have to send the message

Example: 

{
    "blocks": �
        {
            "type": "section",
            "text": {
                "type": "mrkdwn",
                "text": "New Customer Created

. Customer Name: {{Customer_Name}}

. ARR: USD{{ARR}}"
            }
        }
    ]
}

Step 6: Go to Fields Section and set the Data Types of those fields.

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Step 7: Click on “Create”. It will creates the connection.

Step 8: Click on “Test” to test it.

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It will open a page where you can enter some smaple data and click on “Test Action”

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After you press on the Test Action the data will send to the Slack Group.

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The POST URL which I provided was the Lions group slack channel.

Now will see how to get that POST URL. 

Note: To get that URL you must have the Admin Permission to the Slack Workspace.

Step 1: Open any browser and press the “api.slack.com”

Step 2: click on “Start Building” button.

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Step 3: Create a Slack App by selecting the “Create New App” button.

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Step 4: Provide the App Name and Select the Slack Workspace which you have a Admin Rights

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It will show all the App in the App List Screen

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Step 5: Click on the App that which you created. And go to “Add features and functionality”  section and click on the “Incoming Webhooks” section.

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And activate the option for Incoming Webhooks

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And in the same screen you have to click on the “Add New Webhook to Workspace” button.

It will route us to a new page where you have to choose the Slack group from the Dropdown.

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Choose a Slack Group and click Allow.

It will generate a Webhook URL to the selected channel.

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Note: you can create a Rule using “External API” Action to dynamically post message based on your criteria.

Thanks.