Classify Emails & Extract Structured Data From Job Applications with Gpt-4o

The workflow JSON

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{
  "id": "39KuujB1fbOvx8Al",
  "name": "OpenAI e-mail classification - application",
  "tags": [],
  "nodes": [
    {
      "id": "6156844f-d1ba-413d-9ab2-02148bef5bf0",
      "name": "Email trigger",
      "type": "n8n-nodes-base.emailReadImap",
      "position": [
        -440,
        120
      ],
      "parameters": {
        "format": "resolved",
        "options": {},
        "postProcessAction": "nothing",
        "dataPropertyAttachmentsPrefixName": "attachment"
      },
      "credentials": {
        "imap": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 2
    },
    {
      "id": "1aedaa56-d988-469b-86b9-61d50e707950",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        0,
        0
      ],
      "parameters": {
        "height": 200,
        "content": "### Change or add any category you want\nEach category can be assigned it's own specific workflow"
      },
      "typeVersion": 1
    },
    {
      "id": "d41ba844-2b99-42bb-80df-cff1b97dcbb9",
      "name": "Classify email",
      "type": "@n8n/n8n-nodes-langchain.textClassifier",
      "position": [
        0,
        120
      ],
      "parameters": {
        "options": {},
        "inputText": "={{ $('Email trigger').first().json.text }}\n\nattachment:\n{{ $('Extract data from attachment').first().json.text }}\n",
        "categories": {
          "categories": [
            {
              "category": "job_application",
              "description": "for job applications"
            },
            {
              "category": "inbound_lead",
              "description": "for sales inquiries or requests for more information about our products/services"
            },
            {
              "category": "invoice",
              "description": "for invoices"
            },
            {
              "category": "other",
              "description": "for all other sorts of emails"
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "id": "b63a864f-f968-4e7e-9da4-d704f3ffa022",
      "name": "Extract variables - email & attachment",
      "type": "@n8n/n8n-nodes-langchain.informationExtractor",
      "position": [
        440,
        20
      ],
      "parameters": {
        "text": "={{ $('Email trigger').first().json.text }}\n\nResume:\n{{ $('Extract data from attachment').first().json.text }}\n",
        "options": {},
        "attributes": {
          "attributes": [
            {
              "name": "first_name",
              "description": "first name of the applicant"
            },
            {
              "name": "last_name",
              "description": "last name of the applicant"
            },
            {
              "name": "age",
              "description": "age of the applicant"
            },
            {
              "name": "residence",
              "description": "residence of the applicant"
            },
            {
              "name": "study",
              "description": "relevant completed study of the applicant"
            },
            {
              "name": "work_experience",
              "description": "relevant work experience of the applicant"
            },
            {
              "name": "personal_character",
              "description": "personal characteristics of the applicant"
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "id": "398b9240-0d9c-416e-af3b-31ba9e1ac9b2",
      "name": "Extract data from attachment",
      "type": "n8n-nodes-base.extractFromFile",
      "onError": "continueRegularOutput",
      "position": [
        -220,
        120
      ],
      "parameters": {
        "options": {},
        "operation": "pdf",
        "binaryPropertyName": "attachment0"
      },
      "typeVersion": 1,
      "alwaysOutputData": false
    },
    {
      "id": "9f949aac-1681-4f04-983e-8bd5c949987a",
      "name": "OpenAI Chat Model 2",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        660,
        200
      ],
      "parameters": {
        "model": "gpt-4o",
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "c7a61afe-d68d-407e-8653-46cb123877e9",
      "name": "OpenAI Chat Model",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
        100,
        320
      ],
      "parameters": {
        "model": "gpt-4o",
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "name": "<your credential>"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "5a22e81b-8b60-443e-985b-47d493724389",
      "name": "Workflow 2",
      "type": "n8n-nodes-base.noOp",
      "position": [
        440,
        180
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "808e4f35-604e-4354-ab8b-3ba68940016b",
      "name": "Workflow 3",
      "type": "n8n-nodes-base.noOp",
      "position": [
        600,
        360
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "d793675d-c68d-4f73-a99d-6451be5bea30",
      "name": "workflow 4",
      "type": "n8n-nodes-base.noOp",
      "position": [
        440,
        360
      ],
      "parameters": {},
      "typeVersion": 1
    }
  ],
  "active": false,
  "settings": {
    "errorWorkflow": "rkMQmtrfcSF3XpMF",
    "executionOrder": "v1"
  },
  "versionId": "28448ab7-6d45-41df-9de3-aad0e187edc5",
  "connections": {
    "Email trigger": {
      "main": [
        [
          {
            "node": "Extract data from attachment",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Classify email": {
      "main": [
        [
          {
            "node": "Extract variables - email & attachment",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Workflow 2",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Workflow 3",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "workflow 4",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "Classify email",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "OpenAI Chat Model 2": {
      "ai_languageModel": [
        [
          {
            "node": "Extract variables - email & attachment",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Extract data from attachment": {
      "main": [
        [
          {
            "node": "Classify email",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract variables - email & attachment": {
      "main": [
        []
      ]
    }
  }
}

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.

• imap
• openAiApi

About this workflow

This workflow template is designed for business owners and HR professionals to automatically detect and structure unstructured job applications received through email. Additionally, other email categories can be added, each with it's own workflow. Every time a new email is…

Source: https://n8n.io/workflows/3457/ — original creator credit. Request a take-down →

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