{
  "meta": {
    "instanceId": "workflow-4d213838",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.852833",
    "updatedAt": "2025-09-29T07:07:44.852905",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "13f8de57-7247-4be1-8fc4-dddc1a7d677e",
      "name": "Scheduled Start: Daily Churn Check",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        160,
        0
      ],
      "parameters": {
        "rule": {
          "interval": [
            {}
          ]
        }
      },
      "typeVersion": 1.2,
      "notes": "This scheduleTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "8f52666a-7247-4058-a775-2be80e3b4c0e",
      "name": "Fetch Customer Data from Sheet",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        440,
        0
      ],
      "parameters": {
        "options": {
          "returnFirstMatch": false
        },
        "sheetName": {
          "__rl": true,
          "mode": "list",
          "value": 1698897552,
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "Customer Data"
        },
        "documentId": {
          "__rl": true,
          "mode": "list",
          "value": "1hG2NMi-4fMa7D5qGonCN8bsYVya4L2TOB_8mI4XK-9k",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "Medium Post Automation"
        }
      },
      "credentials": {
        "googleSheetsOAuth2Api": {
          "id": "VV5AyFvgYkc4TfC7",
          "name": "Onur Drive "
        }
      },
      "typeVersion": 4.5,
      "notes": "This googleSheets node performs automated tasks as part of the workflow."
    },
    {
      "id": "37951981-3c3d-4434-8782-51e9129f0bbc",
      "name": "Filter High Churn Risk & No Campaign Customers",
      "type": "n8n-nodes-base.filter",
      "position": [
        760,
        0
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "9b78accc-0926-4537-8ce9-70206dd45525",
              "operator": {
                "type": "number",
                "operation": "gt"
              },
              "leftValue": "={{ $json.predicted_churn_score.toNumber() }}",
              "rightValue": 0.7
            }
          ]
        }
      },
      "typeVersion": 2.2,
      "alwaysOutputData": true,
      "notes": "This filter node performs automated tasks as part of the workflow."
    },
    {
      "id": "4152752b-3ba3-4af0-aec8-aba9fc0424d9",
      "name": "Check if Eligible Customers Found",
      "type": "n8n-nodes-base.if",
      "position": [
        1140,
        0
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "2b03f228-f10c-43c1-90f8-a2ef397d2e0b",
              "operator": {
                "type": "boolean",
                "operation": "false",
                "singleValue": true
              },
              "leftValue": "={{ $json.isEmpty() }}",
              "rightValue": ""
            }
          ]
        }
      },
      "typeVersion": 2.2,
      "notes": "This if node performs automated tasks as part of the workflow."
    },
    {
      "id": "c1164b8f-4497-4763-bb42-7187e9f2f4d2",
      "name": "Process Each Eligible Customer",
      "type": "n8n-nodes-base.splitInBatches",
      "position": [
        1640,
        -320
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 3,
      "notes": "This splitInBatches node performs automated tasks as part of the workflow."
    },
    {
      "id": "8896a776-ed5b-431a-908b-663fa8475c77",
      "name": "Generate Win-Back Offer",
      "type": "n8n-nodes-base.noOp",
      "position": [
        2100,
        -300
      ],
      "parameters": {
        "text": "=",
        "messages": {
          "messageValues": [
            {
              "message": "=\n**You are an AI assistant designed to analyze customer data and determine a win-back offer based on specific churn prediction scores and preferences.**\n\n**Input:** You will receive customer data as a JSON object.\n\n**Task:** Analyze the fields `'predicted_churn_score': {{ $json.predicted_churn_score }}` and `'preferred_categories': \"{{ $json.preferred_categories }}\"` in the input JSON. Apply the following rules to determine the appropriate offer details:\n\n**Rules:**\n\n1. If `predicted_churn_score` is greater than or equal to 0.7 and less than or equal to 0.8:\n\n   * Offer Type: `INFORMATIONAL`\n   * Offer Value: `0`\n   * Offer Title: `Special Advantage on Books Just for You`\n   * Offer Details: Create a message encouraging the customer to explore new products in their preferred categories. To make it more specific, select *one* of the preferred categories and include a *typical product type* from that category.\n     Example: `\"Exciting new [product type, e.g., novels] just arrived in your favorite [Preferred Category Name] category! Check out what's new in your other favorite categories too: [List of Other Preferred Categories]!\"`\n\n2. If `predicted_churn_score` is greater than 0.8 and less than or equal to 0.9:\n\n   * Offer Type: `BONUS_POINTS`\n   * Offer Value: `200`\n   * Offer Title: `Special Advantage on Books Just for You`\n   * Offer Details: Create a message offering 200 bonus points for purchases made specifically in the \"Books\" category.\n     Example: `\"Earn 200 bonus points on your next purchase in the Books category!\"`\n\n3. If `predicted_churn_score` is greater than 0.9 and less than or equal to 1.0:\n\n   * Offer Type: `DISCOUNT_PERCENTAGE`\n   * Offer Value: `20`\n   * Offer Title: `Special Advantage on Books Just for You`\n   * Offer Details: Create a message offering a 20% discount on a future purchase specifically in the \"Books\" category.\n     Example: `\"Enjoy a 20% discount on your next purchase in the Books category!\"`\n\n**Output:** Generate a JSON object that includes the determined offer details. The OUTPUT MUST STRICTLY FOLLOW THE STRUCTURE BELOW and INCLUDE ONLY THE JSON OBJECT. Do not add any other text or explanation.\n\n**Output Structure:**\n\n{\n  \"customer_id\": string, // Customer ID from the input data\n  \"action_taken\": \"SENT_WINBACK_OFFER\", // Action taken: win-back offer sent (constant in this example)\n  \"offer_type\": string, // Offer type: INFORMATIONAL, BONUS_POINTS, or DISCOUNT_PERCENTAGE\n  \"offer_value\": number, // Offer value: 0 (informational), 200 (points), or 20 (discount)\n  \"offer_title\": string, // Message title\n  \"offer_details\": string, // Message in Turkish, created based on rules and preferred categories\n  \"communication_channel\": \"email\", // Communication channel (constant in this example)\n  \"timestamp\": string // Current timestamp in ISO 8601 format (e.g., \"YYYY-MM-DDTHH:mm:ssZ\"). Note: In an actual n8n workflow, you may prefer to add the real timestamp using a separate node or expression after the LLM node.\n}\n\n"
            }
          ]
        },
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 1.5,
      "notes": "This chainLlm node performs automated tasks as part of the workflow."
    },
    {
      "id": "b89954e9-7689-47e6-bf15-3089f3863ca9",
      "name": "(LLM Model for Offer Generation)",
      "type": "n8n-nodes-base.noOp",
      "position": [
        2060,
        -120
      ],
      "parameters": {
        "options": {},
        "modelName": "models/gemini-2.0-pro-exp"
      },
      "credentials": {
        "googlePalmApi": {
          "id": "BhQsoi2WTmDm0fQ4",
          "name": "Google Gemini(PaLM) Api account"
        }
      },
      "typeVersion": 1,
      "notes": "This lmChatGoogleGemini node performs automated tasks as part of the workflow."
    },
    {
      "id": "ee485123-32be-447b-80f3-303e3a046207",
      "name": "(Parse Offer JSON)",
      "type": "n8n-nodes-base.noOp",
      "position": [
        2260,
        -100
      ],
      "parameters": {
        "jsonSchemaExample": "{\n  \"customer_id\": \"CUST_001\",\n  \"action_taken\": \"SENT_WINBACK_OFFER\",\n  \"offer_type\": \"BONUS_POINTS\",\n  \"offer_value\": 200,\n  \"offer_title\": \"Huge Offer!\",\n  \"offer_details\": \"Get 200 bonus points when you shop in the Kitap category!\",\n  \"communication_channel\": \"email\",\n  \"timestamp\": \"2024-06-08T09:05:00Z\"\n}"
      },
      "typeVersion": 1.2,
      "notes": "This outputParserStructured node performs automated tasks as part of the workflow."
    },
    {
      "id": "005890c2-f77d-4d0d-add2-496642464a9f",
      "name": "Log Sent Offer in System Log",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        2640,
        -220
      ],
      "parameters": {
        "columns": {
          "value": {
            "date": "={{ $json.output.timestamp }}",
            "system_log": "={{ $json.output.action_taken }}",
            "customer_id": "={{ $json.output.customer_id }}"
          },
          "schema": [
            {
              "id": "system_log",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "system_log",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "date",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "date",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "customer_id",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "customer_id",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            }
          ],
          "mappingMode": "defineBelow",
          "matchingColumns": [
            "system_log"
          ],
          "attemptToConvertTypes": false,
          "convertFieldsToString": false
        },
        "options": {},
        "operation": "appendOrUpdate",
        "sheetName": {
          "__rl": true,
          "mode": "list",
          "value": 157558698,
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "SYSTEM_LOG"
        },
        "documentId": {
          "__rl": true,
          "mode": "list",
          "value": "1hG2NMi-4fMa7D5qGonCN8bsYVya4L2TOB_8mI4XK-9k",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "OnurPolat05 N8N  Db"
        }
      },
      "credentials": {
        "googleSheetsOAuth2Api": {
          "id": "VV5AyFvgYkc4TfC7",
          "name": "Onur Drive "
        }
      },
      "typeVersion": 4.5,
      "notes": "This googleSheets node performs automated tasks as part of the workflow."
    },
    {
      "id": "98295978-21f1-420f-8e9c-4014d53ffb16",
      "name": "Send Win-Back Offer via Email",
      "type": "n8n-nodes-base.gmail",
      "position": [
        2880,
        -120
      ],
      "webhookId": "3067948c-c6f7-4c77-a91f-fcdb2e0c8095",
      "parameters": {
        "sendTo": "={{ $('Process Each Eligible Customer').item.json.user_mail }}",
        "message": "={{ $json.output.offer_details }}",
        "options": {},
        "subject": "={{ $json.output.offer_title }}",
        "emailType": "text"
      },
      "credentials": {
        "gmailOAuth2": {
          "id": "epBpgOmwmYErJ4pe",
          "name": "Onur Account"
        }
      },
      "typeVersion": 2.1,
      "notes": "This gmail node performs automated tasks as part of the workflow."
    },
    {
      "id": "13095156-a54f-432f-8d10-209ddc30680a",
      "name": "Set 'Not Found' Status",
      "type": "n8n-nodes-base.set",
      "position": [
        1620,
        300
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "e42f6e99-487d-4942-a133-879d62b28fe5",
              "name": "system_log",
              "type": "string",
              "value": "NOT_FOUND"
            },
            {
              "id": "4fe0abc3-e685-4ece-bee2-1ae4f6d3ca92",
              "name": "date",
              "type": "string",
              "value": "={{ $now }}"
            }
          ]
        }
      },
      "typeVersion": 3.4,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "1f823726-6483-40c1-b184-eac87886ded5",
      "name": "Log 'Not Found' in System Log",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        1940,
        300
      ],
      "parameters": {
        "columns": {
          "value": {
            "date": "={{ $json.date }}",
            "system_log": "={{ $json.system_log }}"
          },
          "schema": [
            {
              "id": "system_log",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "system_log",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "date",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "date",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            }
          ],
          "mappingMode": "defineBelow",
          "matchingColumns": [
            "system_log"
          ],
          "attemptToConvertTypes": false,
          "convertFieldsToString": false
        },
        "options": {},
        "operation": "appendOrUpdate",
        "sheetName": {
          "__rl": true,
          "mode": "list",
          "value": 157558698,
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "SYSTEM_LOG"
        },
        "documentId": {
          "__rl": true,
          "mode": "list",
          "value": "1hG2NMi-4fMa7D5qGonCN8bsYVya4L2TOB_8mI4XK-9k",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "OnurPolat05 N8N  Db"
        }
      },
      "credentials": {
        "googleSheetsOAuth2Api": {
          "id": "VV5AyFvgYkc4TfC7",
          "name": "Onur Drive "
        }
      },
      "typeVersion": 4.5,
      "notes": "This googleSheets node performs automated tasks as part of the workflow."
    },
    {
      "id": "c6828c9c-c39f-40b5-9197-1435915d3682",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        160,
        -340
      ],
      "parameters": {
        "width": 380,
        "height": 300,
        "content": "# 00. Daily Start & Fetch Customer Data\n\n**Purpose:** Automatically triggers the workflow **once daily** based on the schedule set in the first node. It then fetches all customer data from the specified Google Sheet ('Customer Data' sheet) to identify potential churn risks for the day."
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "71d3f596-1413-4e97-81eb-ec701f15938d",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1560,
        540
      ],
      "parameters": {
        "color": 3,
        "width": 540,
        "height": 300,
        "content": "# 03. Handle No Eligible Customers\n\n**Purpose:** This path executes if the initial filter finds *no* customers meeting the win-back criteria during the daily check.\n1.  **Set Status:** Sets a variable indicating no eligible customers were found (`system_log = NOT_FOUND`).\n2.  **Log Status:** Records this 'NOT_FOUND' status along with the current timestamp in the 'SYSTEM_LOG' Google Sheet. This helps track when the daily workflow ran but had no one to process."
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "0f076e97-7cf0-48b6-8808-db0f1863409e",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        760,
        -360
      ],
      "parameters": {
        "color": 2,
        "width": 460,
        "height": 280,
        "content": "# 01. Filter & Branch\n\n**Purpose:** Filters the fetched customer data to identify those meeting specific win-back criteria:\n1.  `predicted_churn_score` is greater than 0.7.\n2.  No previous campaign date exists (`created_campaign_date` is empty - *Note: Verify this field's purpose or adjust logic if needed*).\nThen, it checks if any customers passed the filter. The workflow branches based on whether eligible customers were found."
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "d3493f09-7eba-4625-98db-83cf649dbbcf",
      "name": "Sticky Note3",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1700,
        -760
      ],
      "parameters": {
        "color": 4,
        "width": 600,
        "height": 360,
        "content": "# 02. Generate & Send Win-Back Offer (Loop)\n\n**Purpose:** Processes each eligible customer found in the previous step individually within a loop.\n1.  **Generate Offer (Gemini):** Uses Google Gemini to create a personalized win-back offer (Informational, Bonus Points, or Discount) based on the customer's `predicted_churn_score` and `preferred_categories`. Outputs offer details in JSON format.\n2.  **Log Sent Offer:** Records the successful generation and intent to send the offer (action_taken, timestamp, customer_id) in the 'SYSTEM_LOG' Google Sheet.\n3.  **Send Email (Gmail):** Sends the generated offer details (`offer_title` and `offer_details`) via email to the customer's `user_mail`.\nThe loop continues until all eligible customers are processed."
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "2fc53a15-2bdd-48f5-9a74-44a2e028e7e0",
      "name": "Sticky Note4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -360,
        -120
      ],
      "parameters": {
        "width": 400,
        "height": 380,
        "content": "# Example Customer Data\n\n\n{\n    \"customer_id\": \"CUST_001\",\n    \"last_purchase_date\": \"2024-01-10T10:00:00Z\",\n    \"purchase_frequency_days\": 90,\n    \"user_mail\":\"example@mail.com\",\n    \"days_since_last_purchase\": 110,\n    \"total_spent_usd\": 55.0,\n    \"preferred_categories\": [\"Kitap\", \"Ofis Malzemeleri\"],\n    \"predicted_churn_score\": 0.85,\n    \"profile_tags\": [\"inactive_long_time\", \"low_spender\"],\n    \"timestamp\": \"2024-06-08T09:00:00Z\"\n}\n"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-4af85662",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    }
  ],
  "pinData": {},
  "connections": {
    "8f52666a-7247-4058-a775-2be80e3b4c0e": {
      "main": [
        [
          {
            "node": "error-handler-8f52666a-7247-4058-a775-2be80e3b4c0e-5eebf600",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "b89954e9-7689-47e6-bf15-3089f3863ca9": {
      "main": [
        [
          {
            "node": "error-handler-b89954e9-7689-47e6-bf15-3089f3863ca9-59661675",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "005890c2-f77d-4d0d-add2-496642464a9f": {
      "main": [
        [
          {
            "node": "error-handler-005890c2-f77d-4d0d-add2-496642464a9f-ad32cb9b",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "1f823726-6483-40c1-b184-eac87886ded5": {
      "main": [
        [
          {
            "node": "error-handler-1f823726-6483-40c1-b184-eac87886ded5-c5ff7674",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "name": "Scheduletrigger Workflow",
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "executionTimeout": 3600,
    "maxExecutions": 1000,
    "retryOnFail": true,
    "retryCount": 3,
    "retryDelay": 1000
  },
  "description": "Automated workflow: Scheduletrigger Workflow. This workflow integrates 12 different services: filter, stickyNote, scheduleTrigger, lmChatGoogleGemini, chainLlm. It contains 21 nodes and follows best practices for error handling and security.",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "notes": "Excellent quality workflow: Scheduletrigger Workflow. This workflow has been optimized for production use with comprehensive error handling, security, and documentation."
}