Gmail to LinkedIn Posts via 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": "decodeai@ghost.io"
        },
        "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

Linkedin Splitout. Uses manualTrigger, gmail, splitOut, openAi. Event-driven trigger; 7 nodes.

Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →

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