Automatización de correos de bienvenida de clientes: Google Sheets + Gemini + Gmail

• •Cuenta de Google y credenciales de API de Gmail
• •Credenciales de API de Google Sheets
• •Clave de API de Google Gemini

{
  "meta": {
    "instanceId": "0a25db4fd0692af64b58f35e01611f2ef0b5bb9d6654c57ef3741021e7d8cc11",
    "templateId": "4448"
  },
  "nodes": [
    {
      "id": "fc6370ed-4336-4b79-ace5-d8237948f460",
      "name": "Manejador de Errores",
      "type": "n8n-nodes-base.errorTrigger",
      "position": [
        2368,
        1264
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "c2016a43-f619-48cd-98e5-84a4efd95594",
      "name": "Ejecución Completada",
      "type": "n8n-nodes-base.noOp",
      "position": [
        3168,
        1136
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "8e7e7958-ed6e-420f-aa4f-ae84ddb456fe",
      "name": "Fallo en la Ejecución",
      "type": "n8n-nodes-base.noOp",
      "position": [
        2592,
        1264
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "id": "0e7be1c3-28cd-4747-a8e8-43666b762b80",
      "name": "Lista de Verificación del Cliente",
      "type": "n8n-nodes-base.set",
      "position": [
        2592,
        1040
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "c9c81e80-f2f2-436d-a6cf-48882b0f72ea",
              "name": "=Checklist",
              "type": "string",
              "value": "=\"Checklist\": \"\n1. Account setup\n2. Welcome call scheduled\n3. Document collection\n4. Service configuration\n5. Onboarding session\n6. First milestone review"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "c80117c6-0d0d-43cc-b986-8996e03a60a2",
      "name": "Modelo de Chat Google Gemini",
      "type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
      "position": [
        2896,
        1264
      ],
      "parameters": {
        "options": {},
        "modelName": "models/gemini-2.0-flash"
      },
      "credentials": {
        "googlePalmApi": {
          "id": "6a9OTOyTQOIKnKAq",
          "name": "Google Gemini(PaLM) Api account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "557143d0-abaa-410d-9117-2b60fce3086e",
      "name": "Activador al Enviar Nuevo Formulario de Cliente",
      "type": "n8n-nodes-base.googleSheetsTrigger",
      "position": [
        2144,
        1040
      ],
      "parameters": {
        "event": "rowAdded",
        "options": {},
        "pollTimes": {
          "item": [
            {
              "mode": "everyMinute"
            }
          ]
        },
        "sheetName": {
          "__rl": true,
          "mode": "list",
          "value": 1635870855,
          "cachedResultUrl": "https://docs.google.com/spreadsheets/d/19Hvti1sX6SvjP1Kj8dWFEiksiqn1FJVBoMToP2X6xBw/edit#gid=1635870855",
          "cachedResultName": "Form Responses 1"
        },
        "documentId": {
          "__rl": true,
          "mode": "list",
          "value": "19Hvti1sX6SvjP1Kj8dWFEiksiqn1FJVBoMToP2X6xBw",
          "cachedResultUrl": "https://docs.google.com/spreadsheets/d/19Hvti1sX6SvjP1Kj8dWFEiksiqn1FJVBoMToP2X6xBw/edit?usp=drivesdk",
          "cachedResultName": "Onboarding"
        }
      },
      "credentials": {
        "googleSheetsTriggerOAuth2Api": {
          "id": "ciFJ21F7Wq3VZJYU",
          "name": "Google Sheets Trigger account"
        }
      },
      "typeVersion": 1
    },
    {
      "id": "de000539-7f90-49df-9b42-1ceed11b09be",
      "name": "Extraer y Estructurar Datos del Cliente",
      "type": "n8n-nodes-base.set",
      "position": [
        2368,
        1040
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "7c333d8f-04cd-4987-9c30-4c7bc26baecb",
              "name": "fields",
              "type": "string",
              "value": "=Name:  {{ $json['Client name'] }} \nEmail:  {{ $json[' email '] }}\nCompany: {{ $json['  Company Name  '] }}\nService Needed: {{ $json['  Services Needed  '] }}\nOther info: {{ $json['  Any other onboarding info  '] }}"
            }
          ]
        }
      },
      "typeVersion": 3.4
    },
    {
      "id": "f762750d-85c5-4932-97c7-a40817950af1",
      "name": "Personalizar Usando Gemini",
      "type": "@n8n/n8n-nodes-langchain.chainLlm",
      "position": [
        2816,
        1040
      ],
      "parameters": {
        "text": "=Give me an onboarding check list for an email to the client, give me only email body and don't generate extra text like \"Okay, here's an email template ...\" and start and end on new lines\nstart with:\nHi {{ $('Trigger on New Client Form Submission').item.json['Client name'] }}, \nand end with \nBest regards,\nYour {{ $('Trigger on New Client Form Submission').item.json['  Company Name  '] }} Team\n\n:\nAlso use information from checklist and Fields below\n {{ $json.Checklist }}\n\nFields: {{ $('Extract and Structure Client Data').item.json.fields }}",
        "promptType": "define"
      },
      "typeVersion": 1.5
    },
    {
      "id": "58f03de6-b01a-45bd-b3ce-85c74a17aef5",
      "name": "Enviar Correo al Cliente",
      "type": "n8n-nodes-base.gmail",
      "position": [
        3168,
        944
      ],
      "webhookId": "2a07b507-23a6-4bfb-adff-997d30ea3dfa",
      "parameters": {
        "sendTo": "={{ $('Trigger on New Client Form Submission').item.json[' email '] }}",
        "message": "= {{ $json.text }}",
        "options": {},
        "subject": "=Welcome to Our Service,  {{ $('Trigger on New Client Form Submission').item.json['Client name'] }} "
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "vdI9VLsEmuPzPxxo",
          "name": "Gmail account"
        }
      },
      "typeVersion": 2.1
    },
    {
      "id": "b405a300-66ea-47b3-9a9f-7a146536764f",
      "name": "Nota Adhesiva",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2080,
        768
      ],
      "parameters": {
        "color": 4,
        "width": 288,
        "height": 256,
        "content": "## STEP 1 · Trigger & Intake\n**Google Sheets Trigger** fires on new form row.\n**Extract & Structure** maps fields into a single string (Name/Email/Company/Service/Notes).\nTip: Column keys include spaces (e.g. `\" email \"`, `\"  Company Name  \"`). Match them exactly."
      },
      "typeVersion": 1
    },
    {
      "id": "02ad7e7f-f94c-40dd-839c-ca7064eab2e2",
      "name": "Nota Adhesiva1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2480,
        768
      ],
      "parameters": {
        "color": 5,
        "height": 224,
        "content": "## STEP 2 · Checklist Context\n**Client Checklist (Set)** provides a default onboarding checklist.\nUsed together with the extracted fields to enrich the email prompt.\nEdit this list to fit your service offering."
      },
      "typeVersion": 1
    },
    {
      "id": "3e8be3db-0223-4b39-a6dd-9e8db01d801a",
      "name": "Nota Adhesiva2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2800,
        688
      ],
      "parameters": {
        "color": 6,
        "height": 304,
        "content": "## STEP 3 · Personalize with Gemini\n**Chain (Gemini)** generates the **email body only** (no extra wrapper text).\nPrompt forces greeting with client name and sign-off with company team.\nModel: Google Gemini via LLM node; output available as `{{ $json.text }}`."
      },
      "typeVersion": 1
    },
    {
      "id": "133ced0e-168a-4332-afd8-d0216b7b3a38",
      "name": "Nota Adhesiva3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        3136,
        672
      ],
      "parameters": {
        "color": 7,
        "height": 256,
        "content": "## STEP 4 · Send & Run State\n**Gmail** sends to the form email, subject prefilled.\nIf body includes HTML, set Gmail node to HTML mode.\n**Execution Completed / Failure**: NoOps mark success/failure; **Error Trigger** catches unhandled errors."
      },
      "typeVersion": 1
    }
  ],
  "pinData": {},
  "connections": {
    "fc6370ed-4336-4b79-ace5-d8237948f460": {
      "main": [
        [
          {
            "node": "8e7e7958-ed6e-420f-aa4f-ae84ddb456fe",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "0e7be1c3-28cd-4747-a8e8-43666b762b80": {
      "main": [
        [
          {
            "node": "f762750d-85c5-4932-97c7-a40817950af1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "c80117c6-0d0d-43cc-b986-8996e03a60a2": {
      "ai_languageModel": [
        [
          {
            "node": "f762750d-85c5-4932-97c7-a40817950af1",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "f762750d-85c5-4932-97c7-a40817950af1": {
      "main": [
        [
          {
            "node": "58f03de6-b01a-45bd-b3ce-85c74a17aef5",
            "type": "main",
            "index": 0
          },
          {
            "node": "c2016a43-f619-48cd-98e5-84a4efd95594",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "de000539-7f90-49df-9b42-1ceed11b09be": {
      "main": [
        [
          {
            "node": "0e7be1c3-28cd-4747-a8e8-43666b762b80",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "557143d0-abaa-410d-9117-2b60fce3086e": {
      "main": [
        [
          {
            "node": "de000539-7f90-49df-9b42-1ceed11b09be",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}