Summarize Microsoft 365 Outage Alerts with Chatgpt and Send to Slack

The workflow JSON

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{
  "id": "30gz7QjTektkBI2I",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "365 Service Alerts: Summarize and push alert to Slack",
  "tags": [],
  "nodes": [
    {
      "id": "48e59db6-a492-45bf-8865-0ec258cdd638",
      "name": "Check for 365 Service Alert",
      "type": "n8n-nodes-base.microsoftOutlookTrigger",
      "position": [
        720,
        0
      ],
      "parameters": {
        "output": "raw",
        "filters": {
          "sender": "user@example.com"
        },
        "options": {},
        "pollTimes": {
          "item": [
            {
              "mode": "everyMinute"
            }
          ]
        }
      },
      "credentials": {},
      "typeVersion": 1
    },
    {
      "id": "6c392e16-8bae-4336-a7ba-1c2bc39a48ec",
      "name": "Post outage to Slack",
      "type": "n8n-nodes-base.slack",
      "position": [
        1740,
        0
      ],
      "parameters": {
        "text": "={{ $json.blocks[0].text.text }}",
        "select": "channel",
        "blocksUi": "={{ $json }}",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": "",
          "cachedResultName": ""
        },
        "messageType": "block",
        "otherOptions": {
          "mrkdwn": true,
          "includeLinkToWorkflow": false
        }
      },
      "credentials": {
        "slackApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2.3
    },
    {
      "id": "45e2f8bc-48e8-489a-9a5e-bdbbbb399bf7",
      "name": "Clear email alert from mailbox",
      "type": "n8n-nodes-base.microsoftOutlook",
      "position": [
        1940,
        0
      ],
      "parameters": {
        "messageId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $('Check for 365 Service Alert').item.json.id }}"
        },
        "operation": "delete"
      },
      "credentials": {},
      "typeVersion": 2
    },
    {
      "id": "9a9c12d7-e43d-4db8-b764-16112d7ec61e",
      "name": "Summarize service alert",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "position": [
        1180,
        0
      ],
      "parameters": {
        "modelId": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini",
          "cachedResultName": "GPT-4O-MINI"
        },
        "options": {},
        "messages": {
          "values": [
            {
              "role": "system",
              "content": "You are a summarization assistant that rewrites Microsoft 365 Service Health alerts into Slack Block Kit-compatible messages for business and IT stakeholders.\n\nYour output must follow these rules:\n- Provide the alert summary as a **single string**, written in Slack mrkdwn format.\n- Begin with an appropriate emoji to reflect status:\n  - \ud83d\udfe1 for *Investigating*\n  - \ud83d\udee0\ufe0f for *Fix in Progress*\n  - \u2705 for *Service Restored*\n  - \u274c for *Outage*\n- Include the **service name**, a **short issue summary**, and whether **users may have been affected**.\n- Assume the organization has users primarily in the U.S. and Australia. If those regions are affected, state: \"_Your users may have been affected._\" Otherwise, add: \"_No impact expected for your user base._\". Dont specify the impact to users if this a Resolved or Service Restored alert.\n- The summary must be concise (2\u20133 short lines), clear, and neutral in tone.\n\nAdditionally, return the incident ID (e.g., `EX394347`) and the full incident link separately. These are used to create a button.\n\nYour final output must be a JSON object with these three fields:\n- `summaryText`: the markdown summary text for Slack\n- `incidentId`: the incident ID (e.g., EX394347)\n- `incidentLink`: the incident URL"
            },
            {
              "content": "=Summarize the following Microsoft 365 alert for Slack.\n<alert>{{ $json.extractedText }}</alert>\n<hyperlink>{{ $json.incidentLink }}</hyperlink>"
            }
          ]
        },
        "jsonOutput": true
      },
      "credentials": {},
      "typeVersion": 1.8
    },
    {
      "id": "de4751e5-e6c2-44a8-aee5-4d6fb8f09fab",
      "name": "Generate Slack Block",
      "type": "n8n-nodes-base.code",
      "position": [
        1540,
        0
      ],
      "parameters": {
        "jsCode": "return [{\n  json: {\n    blocks: [\n      {\n        type: \"section\",\n        text: {\n          type: \"mrkdwn\",\n          text: $json.message.content.summaryText\n        },\n        accessory: {\n          type: \"button\",\n          text: {\n            type: \"plain_text\",\n            text: `View ${$input.first().json.message.content.incidentId}`,\n            emoji: true\n          },\n          value: $json.message.content.incidentId,\n          url: $json.message.content.incidentLink,\n          action_id: \"button-action\"\n        }\n      }\n    ]\n  }\n}];\n"
      },
      "typeVersion": 2
    },
    {
      "id": "9dd39e09-c467-4eba-ad65-43328cd69aab",
      "name": "Extract M365 Incident text & link",
      "type": "n8n-nodes-base.code",
      "position": [
        940,
        0
      ],
      "parameters": {
        "jsCode": "// This function runs in N8N's Code node\nconst cheerio = require(\"cheerio\");\n\n// Get the HTML content from the previous node\nconst htmlContent = items[0].json.body.content;\n\nif (!htmlContent) {\n  throw new Error(\"No HTML content found in the input\");\n}\n\n// Load HTML into cheerio (similar to jQuery for Node.js)\nconst $ = cheerio.load(htmlContent);\n\n// Extract the incident link from the anchor tag containing the incident ID\nconst incidentAnchor = $('a[href*=\"servicehealth?message=\"]').first();\nconst incidentLink = incidentAnchor.attr('href') || null;\n\n// Remove unnecessary elements if needed\n$('script, style, head, nav, footer, iframe, img').remove();\n\n// Extract the text content, preserving basic structure\nlet plainText = '';\n\n// Get the main content (customize selectors based on MS365 alert structure)\nconst mainContent = $('body') || $('main') || $('div.main-content');\n\n// Process text with basic formatting\nmainContent.find('h1, h2, h3, h4, h5, p, li, table, div').each((i, el) => {\n  const tag = $(el).prop('tagName').toLowerCase();\n  const text = $(el).text().trim();\n  \n  if (!text) return;\n  \n  // Add appropriate spacing and formatting\n  if (tag.startsWith('h')) {\n    plainText += `\\n\\n${text}\\n\\n`;\n  } else if (tag === 'p') {\n    plainText += `\\n${text}\\n`;\n  } else if (tag === 'li') {\n    plainText += `\\n- ${text}`;\n  } else {\n    plainText += `\\n${text}`;\n  }\n});\n\n// Clean up extra whitespace and normalize line breaks\nplainText = plainText.replace(/\\s+\\n/g, '\\n').replace(/\\n{3,}/g, '\\n\\n').trim();\n\n// Set the output\nreturn [{\n  json: {\n    extractedText: plainText,\n    incidentLink: incidentLink\n  }\n}];"
      },
      "typeVersion": 2
    }
  ],
  "active": true,
  "settings": {
    "callerPolicy": "workflowsFromSameOwner",
    "executionOrder": "v1",
    "saveExecutionProgress": true
  },
  "versionId": "d773a7c3-e50b-45a4-8db0-0186847510f1",
  "connections": {
    "Slack": {
      "main": [
        [
          {
            "node": "Microsoft Outlook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate Slack Block": {
      "main": [
        [
          {
            "node": "Slack",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Summarize service alert": {
      "main": [
        [
          {
            "node": "Generate Slack Block",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check for 365 Service Alert": {
      "main": [
        [
          {
            "node": "Extract M365 Incident text & link",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract M365 Incident text & link": {
      "main": [
        [
          {
            "node": "Summarize service alert",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• slackApi

About this workflow

Built this for a dedicated Slack outage-notifications channel — works well on both desktop and mobile.

Source: https://n8n.io/workflows/3353/ — original creator credit. Request a take-down →

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