Workflow: Mattermost GoogleSheets Automate

{
    "nodes": [
        {
            "name": "Cron",
            "type": "n8n-nodes-base.cron",
            "position": [
                450,
                300
            ],
            "parameters": {
                "triggerTimes": {
                    "item": [
                        {
                            "mode": "custom",
                            "cronExpression": "0 0 17 28 9 *"
                        }
                    ]
                }
            },
            "typeVersion": 1
        },
        {
            "name": "Google Sheets",
            "type": "n8n-nodes-base.googleSheets",
            "position": [
                650,
                300
            ],
            "parameters": {
                "range": "Sessions!A:D",
                "options": [],
                "sheetId": "1nlnsTQKGgQZN-Rtd07K9bn0ROm0aFBC2O4kzM2YaTBI",
                "authentication": "oAuth2"
            },
            "credentials": {
                "googleSheetsOAuth2Api": "n8ndocsburner-googlesheets"
            },
            "typeVersion": 1
        },
        {
            "name": "Mattermost",
            "type": "n8n-nodes-base.mattermost",
            "position": [
                850,
                300
            ],
            "parameters": {
                "message": "= Hey @channel, we hope you had a great time at **{{$node[\"Google Sheets\"].json[\"Session\"]}}**.\nLet us know how we did by sharing your feedback with us on the link below!",
                "channelId": "={{$node[\"Google Sheets\"].json[\"Mattermost Channel ID\"]}}",
                "attachments": [
                    {
                        "title": "=Feedback Form - {{$node[\"Google Sheets\"].json[\"Session\"]}}",
                        "title_link": "={{$node[\"Google Sheets\"].json[\"Feedback Form Link\"]}}"
                    }
                ],
                "otherOptions": []
            },
            "credentials": {
                "mattermostApi": "mm_failedmachine"
            },
            "typeVersion": 1
        }
    ],
    "connections": {
        "Cron": {
            "main": [
                [
                    {
                        "node": "Google Sheets",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Google Sheets": {
            "main": [
                [
                    {
                        "node": "Mattermost",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}