Daily Inactive Students Reminder

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 →

{
  "name": "Kreativ: Lembrete Inatividade",
  "nodes": [
    {
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "cronExpression",
              "expression": "0 10 * * *"
            }
          ]
        }
      },
      "id": "inat-sched",
      "name": "Di\u00e1rio 10h",
      "type": "n8n-nodes-base.scheduleTrigger",
      "typeVersion": 1.2,
      "position": [
        240,
        304
      ]
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "SELECT s.phone, s.name, s.current_module,\n  EXTRACT(DAY FROM NOW() - s.updated_at) as dias_inativo,\n  m.title as module_title\nFROM students s\nLEFT JOIN modules m ON m.course_id = s.course_id AND m.module_number = s.current_module\nWHERE s.attendance_status = 'bot'\n  AND s.updated_at < NOW() - INTERVAL '3 days'\n  AND s.current_module > 0\n  AND (s.scores IS NULL OR NOT (s.scores ? 'module_5'))\nLIMIT 50",
        "options": {}
      },
      "id": "inat-query",
      "name": "Alunos Inativos",
      "type": "n8n-nodes-base.postgres",
      "typeVersion": 2.6,
      "position": [
        460,
        304
      ],
      "credentials": {
        "postgres": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "batchSize": 5,
        "options": {}
      },
      "id": "inat-batch",
      "name": "Lotes de 5",
      "type": "n8n-nodes-base.splitInBatches",
      "typeVersion": 3,
      "position": [
        680,
        304
      ]
    },
    {
      "parameters": {
        "jsCode": "\nconst s = $input.item.json;\nconst dias = Math.floor(s.dias_inativo || 3);\nconst nome = (s.name || 'Aluno').split(' ')[0];\nconst modulo = s.current_module || 1;\nconst titulo = s.module_title || `M\u00f3dulo ${modulo}`;\n\nlet msg = '';\nif (dias >= 7) {\n  msg = `Saudades, ${nome}! \ud83c\udf1f\\n\\nFaz ${dias} dias que voc\u00ea n\u00e3o acessa seu curso de IA. Sabemos que a vida \u00e9 corrida, mas seu aprendizado n\u00e3o precisa parar!\\n\\nVoc\u00ea estava no *${titulo}*. Responda *CONTINUAR* para retomar de onde parou. Estamos aqui! \ud83d\udcaa`;\n} else {\n  msg = `Oi, ${nome}! \ud83d\udc4b\\n\\nPercebemos que voc\u00ea n\u00e3o continuou o curso nos \u00faltimos ${dias} dias. Que tal dar continuidade hoje?\\n\\nVoc\u00ea estava no *${titulo}*. \u00c9 r\u00e1pido, prometo! \ud83d\ude0a\\n\\nResponda *MODULO* para continuar.`;\n}\n\nreturn [{ json: { phone: s.phone, message: msg } }];\n"
      },
      "id": "inat-msg",
      "name": "Montar Mensagem",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        900,
        304
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "http://kreativ_evolution:8080/message/sendText/europs",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "apikey",
              "value": "EXr5OuEE2sBMbRo94LtWQfofvEF1gHUM"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ number: $json.phone, text: $json.message }) }}",
        "options": {}
      },
      "id": "inat-send",
      "name": "Enviar Lembrete",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1120,
        304
      ],
      "continueOnFail": true
    },
    {
      "parameters": {
        "amount": 2,
        "unit": "seconds"
      },
      "id": "inat-wait",
      "name": "Aguardar 2s",
      "type": "n8n-nodes-base.wait",
      "typeVersion": 1,
      "position": [
        1340,
        304
      ]
    }
  ],
  "connections": {
    "Di\u00e1rio 10h": {
      "main": [
        [
          {
            "node": "Alunos Inativos",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Alunos Inativos": {
      "main": [
        [
          {
            "node": "Lotes de 5",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Lotes de 5": {
      "main": [
        [
          {
            "node": "Montar Mensagem",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Montar Mensagem": {
      "main": [
        [
          {
            "node": "Enviar Lembrete",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Enviar Lembrete": {
      "main": [
        [
          {
            "node": "Aguardar 2s",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Aguardar 2s": {
      "main": [
        [
          {
            "node": "Lotes de 5",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "availableInMCP": false
  },
  "staticData": {
    "node:Di\u00e1rio 10h": {
      "recurrenceRules": []
    }
  }
}

Credentials you'll need

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• postgres

About this workflow

Kreativ: Lembrete Inatividade. Uses postgres, httpRequest. Scheduled trigger; 6 nodes.

Source: https://github.com/RAFAELUFT22/kreativ_bot_v2/blob/2e44f13e3eab55e41e825bf59bca063e04a97b1a/n8n-workflows/08-inatividade.json — original creator credit. Request a take-down →

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