Transform Gmail Newsletters Into Insightful Linkedin Posts Using Openai

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "nodes": [
    {
      "id": "02628817-d072-4caa-b935-945d09f57a85",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        0,
        0
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "7361f9a8-d834-49d3-b0c1-bb4510f654cc",
      "name": "Gmail",
      "type": "n8n-nodes-base.gmail",
      "position": [
        220,
        0
      ],
      "parameters": {
        "limit": 1,
        "simple": false,
        "filters": {
          "sender": "user@example.com"
        },
        "options": {},
        "operation": "getAll"
      },
      "credentials": {
        "gmailOAuth2": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2.1
    },
    {
      "id": "39e63d5f-db0d-4fc6-a5e8-a9ac3c2a703c",
      "name": "Split Out",
      "type": "n8n-nodes-base.splitOut",
      "position": [
        816,
        0
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "message.content.news_items"
      },
      "typeVersion": 1
    },
    {
      "id": "70e64a00-8dc0-4ef4-a4fd-3ac2e50c8fb3",
      "name": "Extract News Items",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "position": [
        440,
        0
      ],
      "parameters": {
        "modelId": {
          "__rl": true,
          "mode": "list",
          "value": "o3-mini-2025-01-31",
          "cachedResultName": "O3-MINI-2025-01-31"
        },
        "options": {},
        "messages": {
          "values": [
            {
              "content": "=Given the following newsletter content, identify and summarize the 5 main news items. Focus on factual updates like new AI tools, product launches, or strategic investments. For each item, extract a headline and provide a concise summary. Please ignore purely promotional sections (e.g., calls to book demos or product advertisements).\n\n<text>\n{{ $json.text }}\n</text>"
            }
          ]
        },
        "jsonOutput": true
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.8
    },
    {
      "id": "cecf013b-bcf2-49a3-acc2-b81e355446b6",
      "name": "Create LinkedIn Posts",
      "type": "@n8n/n8n-nodes-langchain.openAi",
      "position": [
        1040,
        0
      ],
      "parameters": {
        "modelId": {
          "__rl": true,
          "mode": "list",
          "value": "o3-mini-2025-01-31",
          "cachedResultName": "O3-MINI-2025-01-31"
        },
        "options": {},
        "messages": {
          "values": [
            {
              "content": "=Using the news item details below:\n\nHeadline: {{ $json.headline }}\nSummary: {{ $json.summary }}\n\nCraft a concise, non-promotional LinkedIn post in a smart, deadpan style with subtle humor. Focus on clearly conveying the main points and insights so readers gain practical value. \n- Break up the text into short paragraphs or bullet points for clarity.\n- Use line breaks where helpful.\n- End with an observation or question that encourages reflection\u2014without being overly salesy or flashy.\n- Keep it under 80 words total.\n\n"
            }
          ]
        }
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1.8
    },
    {
      "id": "31412fb3-ef9a-4c98-840b-a97fd7075181",
      "name": "LinkedIn",
      "type": "n8n-nodes-base.linkedIn",
      "position": [
        1420,
        0
      ],
      "parameters": {
        "text": "={{ $json.message.content }}",
        "person": "EI5XKdiMv1",
        "additionalFields": {}
      },
      "credentials": {
        "linkedInOAuth2Api": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "a80f43a1-35c8-4f41-8d96-6e64e4ae0cf7",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -20,
        -620
      ],
      "parameters": {
        "width": 900,
        "height": 520,
        "content": "# Workflow Overview\n\n**Name:** Transform Gmail Newsletters into Insightful LinkedIn Posts Using OpenAI\n\n**Purpose:**  \n- **Filter Newsletters:** Use the Gmail node to process emails from a specific sender (e.g., `newsletter@example.com`).  \n- **Extract Key Items:** Leverage an OpenAI node to identify and summarize the top news items from each newsletter.  \n- **Generate Posts:** Automatically create concise, informative, and subtly humorous LinkedIn posts for each news item.  \n- **Publish:** Post the refined content to your LinkedIn account with the LinkedIn node.\n\n**Setup Steps:**  \n1. **Gmail Node:** Configure and rename to \"Filter Gmail Newsletter\" with the appropriate sender filter.  \n2. **OpenAI Nodes:** Ensure API credentials are set; customize prompt texts if desired.  \n3. **LinkedIn Node:** Rename to \"Post to LinkedIn\" and verify correct OAuth2 credentials.\n\n**Customization Tips:**  \n- Modify the OpenAI prompts to fine-tune the tone and structure of the LinkedIn posts.  \n- Add additional formatting (e.g., Function nodes) for post readability if needed.\n\n*This workflow turns your regular newsletters into engaging, ready-to-share LinkedIn insights in just a few simple steps!*\n"
      },
      "typeVersion": 1
    }
  ],
  "connections": {
    "Gmail": {
      "main": [
        [
          {
            "node": "Extract News Items",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Split Out": {
      "main": [
        [
          {
            "node": "Create LinkedIn Posts",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract News Items": {
      "main": [
        [
          {
            "node": "Split Out",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Create LinkedIn Posts": {
      "main": [
        [
          {
            "node": "LinkedIn",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When clicking \u2018Test workflow\u2019": {
      "main": [
        [
          {
            "node": "Gmail",
            "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.

• gmailOAuth2
• linkedInOAuth2Api
• openAiApi

About this workflow

This workflow is perfect for content creators, marketers, and business professionals who receive regular newsletters and want to effortlessly convert them into engaging LinkedIn posts. By automating the extraction and repurposing process, you can save time and consistently share…

Source: https://n8n.io/workflows/3509/ — original creator credit. Request a take-down →

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