Auto-label incoming Gmail messages with AI nodes

{"nodes": [{"id": "8141ffad-df2a-403b-a869-799c036f9733", "name": "Gmail trigger", "type": "n8n-nodes-base.gmailTrigger", "position": [-600, 580], "parameters": {"simple": false, "filters": {}, "options": {}, "pollTimes": {"item": [{"mode": "everyMinute"}]}}, "credentials": {"gmailOAuth2": {"id": "", "name": "[Your gmailOAuth2]"}}, "typeVersion": 1}, {"id": "6d9aa398-e2de-4fd0-b939-2a12d0c9fe14", "name": "Get message content", "type": "n8n-nodes-base.gmail", "position": [-340, 580], "parameters": {"simple": false, "options": {}, "messageId": "={{ $json.id }}", "operation": "get"}, "credentials": {"gmailOAuth2": {"id": "", "name": "[Your gmailOAuth2]"}}, "typeVersion": 2.1}, {"id": "cd86bc09-8c7f-4c85-9cb3-6dbd42420672", "name": "Set label values", "type": "n8n-nodes-base.set", "position": [300, 580], "parameters": {"fields": {"values": [{"name": "labels", "type": "arrayValue", "arrayValue": "={{ $json.labels }}"}]}, "options": {}}, "typeVersion": 3.2}, {"id": "329435a6-51d1-416e-9aa9-5fe9a8dce74f", "name": "Get all labels", "type": "n8n-nodes-base.gmail", "position": [580, 460], "parameters": {"resource": "label", "returnAll": true}, "credentials": {"gmailOAuth2": {"id": "", "name": "[Your gmailOAuth2]"}}, "typeVersion": 2.1}, {"id": "7ae2dd15-472d-4a4b-b036-f80ebd7e3c28", "name": "Split out assigned labels", "type": "n8n-nodes-base.splitOut", "position": [580, 700], "parameters": {"options": {}, "fieldToSplitOut": "labels"}, "typeVersion": 1}, {"id": "744c7afa-75b1-4b3b-8ccb-e2106c01f387", "name": "Merge corresponding labels", "type": "n8n-nodes-base.merge", "position": [860, 580], "parameters": {"mode": "combine", "options": {}, "mergeByFields": {"values": [{"field1": "name", "field2": "labels"}]}, "outputDataFrom": "input1"}, "typeVersion": 2.1}, {"id": "e47424dc-f43e-41a9-b1e5-ab3e08cbf395", "name": "Aggregate label IDs", "type": "n8n-nodes-base.aggregate", "position": [1120, 580], "parameters": {"options": {}, "fieldsToAggregate": {"fieldToAggregate": [{"renameField": true, "outputFieldName": "label_ids", "fieldToAggregate": "id"}]}}, "typeVersion": 1}, {"id": "22ba8297-8efc-463e-8ae0-385fd94a205f", "name": "Add labels to message", "type": "n8n-nodes-base.gmail", "position": [1340, 580], "parameters": {"labelIds": "={{ $json.label_ids }}", "messageId": "={{ $('Gmail trigger').item.json[\"id\"] }}", "operation": "addLabels"}, "credentials": {"gmailOAuth2": {"id": "", "name": "[Your gmailOAuth2]"}}, "typeVersion": 2.1}, {"id": "7ebb1aad-00ad-43fa-9e07-e5f324864a74", "name": "Assign labels for message", "type": "@n8n/n8n-nodes-langchain.chainLlm", "position": [-80, 580], "parameters": {"prompt": "={{ $json.text }}", "messages": {"messageValues": [{"message": "Your task is to categorize the message according to the following labels.\n\nPartnership - email about sponsored content, cooperation etc.\nInquiry - email about products, services.\nNotification - email that doesn't require response. \n\nOne email can have more than one label. Return only label names in JSON format, nothing else. Do not make things up. "}]}}, "typeVersion": 1.3}, {"id": "2f82db6a-422c-4697-a629-cc782d88209d", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [-1100, 400], "parameters": {"color": 4, "width": 420.4803040774015, "height": 240.57943708322733, "content": "## Add AI labels to Gmail messages\nWith this workflow you can automatically set labels for your Gmail message according to its content. \n\nIn this workflow available are 3 labels: \"Partnership\", \"Inquiry\" and \"Notification\". Feel free to adjust labels according to your needs. \n\n**Please remember to set label names both in your Gmail account and workflow.**"}, "typeVersion": 1}, {"id": "4a10fb2b-aebb-4735-bbdb-7f07f1136d95", "name": "Sticky Note1", "type": "n8n-nodes-base.stickyNote", "position": [-1100, 660], "parameters": {"width": 421.0932411886662, "height": 257.42916378714597, "content": "## \u26a0\ufe0f Note\n\n1. Complete video guide for this workflow is available [on my YouTube](https://youtu.be/a8Dhj3Zh9vQ). \n2. Remember to add your credentials and configure nodes (covered in the video guide).\n3. If you like this workflow, please subscribe to [my YouTube channel](https://www.youtube.com/@workfloows) and/or [my newsletter](https://workfloows.com/).\n\n**Thank you for your support!**"}, "typeVersion": 1}, {"id": "76e62351-d502-4377-9df2-fe92df00fe03", "name": "Sticky Note2", "type": "n8n-nodes-base.stickyNote", "position": [-660, 400], "parameters": {"width": 238.4602598584674, "height": 348.5873725349161, "content": "### Gmail Trigger\nReceive data from Gmail about new incoming message. \n\n\u26a0\ufe0f Set polling interval according to your needs."}, "typeVersion": 1}, {"id": "c10702db-211f-4638-bcf0-fbbe18251cb7", "name": "Sticky Note4", "type": "n8n-nodes-base.stickyNote", "position": [60, 780], "parameters": {"width": 241.53974014153226, "height": 319.3323098457962, "content": "###\n\n\n\n\n\n\n\n\n\n\n### JSON schema\nEdit JSON schema and label names according to your needs.\n\n\u26a0\ufe0f **Label names in system prompt and JSON schema should be the same.**"}, "typeVersion": 1}, {"id": "cb6e3573-3d4d-4313-a97e-86a017438399", "name": "Sticky Note5", "type": "n8n-nodes-base.stickyNote", "position": [800, 420], "parameters": {"width": 226.14233872620645, "height": 347.0476323933831, "content": "### Merge labels\nCombine labels retrieved from Gmail account and assigned by AI together."}, "typeVersion": 1}, {"id": "8cfb4341-98e6-4944-b26c-15e39184f468", "name": "Sticky Note6", "type": "n8n-nodes-base.stickyNote", "position": [1060, 420], "parameters": {"width": 452.48413953150185, "height": 347.0476323933831, "content": "### Aggregarte labels and add to message\nCreate array of label IDs and add to the desired email message in Gmail."}, "typeVersion": 1}, {"id": "bb9766e8-0b72-47f8-9a8e-0b291609e814", "name": "Sticky Note7", "type": "n8n-nodes-base.stickyNote", "position": [-400, 400], "parameters": {"width": 238.4602598584674, "height": 348.5873725349161, "content": "### Get message content\nBased on Gmail message ID retrieve body content of the email and pass it to AI chain."}, "typeVersion": 1}, {"id": "48630cbd-8336-4577-928e-37341f09ef9b", "name": "Sticky Note8", "type": "n8n-nodes-base.stickyNote", "position": [-140, 400], "parameters": {"width": 378.57661273793565, "height": 348.5873725349161, "content": "### Assign labels\nLet the AI decide which labels suit the best content of the message.\n\n\u26a0\ufe0f **Remember to edit system prompt** - modify label names and instructions according to your needs."}, "typeVersion": 1}, {"id": "60a9d75e-1564-4b1d-b3f2-acc2e3bf2411", "name": "JSON Parser", "type": "@n8n/n8n-nodes-langchain.outputParserStructured", "position": [140, 800], "parameters": {"jsonSchema": "{\n \"type\": \"object\",\n \"properties\": {\n \"labels\": {\n \"type\": \"array\",\n \"items\": {\n \"type\": \"string\",\n \"enum\": [\"Inquiry\", \"Partnership\", \"Notification\"]\n }\n }\n },\n \"required\": [\"labels\"]\n}\n"}, "typeVersion": 1}, {"id": "2bdf3fed-8a7f-411a-bad4-266bfea5cede", "name": "OpenAI Chat", "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi", "position": [-120, 800], "parameters": {"model": "gpt-4-turbo-preview", "options": {"temperature": 0, "responseFormat": "json_object"}}, "credentials": {"openAiApi": {"id": "", "name": "[Your openAiApi]"}}, "typeVersion": 1}], "active": false, "pinData": {}, "settings": {"executionOrder": "v1"}, "connections": {"JSON Parser": {"ai_outputParser": [[{"node": "Assign labels for message", "type": "ai_outputParser", "index": 0}]]}, "OpenAI Chat": {"ai_languageModel": [[{"node": "Assign labels for message", "type": "ai_languageModel", "index": 0}]]}, "Gmail trigger": {"main": [[{"node": "Get message content", "type": "main", "index": 0}]]}, "Get all labels": {"main": [[{"node": "Merge corresponding labels", "type": "main", "index": 0}]]}, "Set label values": {"main": [[{"node": "Get all labels", "type": "main", "index": 0}, {"node": "Split out assigned labels", "type": "main", "index": 0}]]}, "Aggregate label IDs": {"main": [[{"node": "Add labels to message", "type": "main", "index": 0}]]}, "Get message content": {"main": [[{"node": "Assign labels for message", "type": "main", "index": 0}]]}, "Assign labels for message": {"main": [[{"node": "Set label values", "type": "main", "index": 0}]]}, "Split out assigned labels": {"main": [[{"node": "Merge corresponding labels", "type": "main", "index": 1}]]}, "Merge corresponding labels": {"main": [[{"node": "Aggregate label IDs", "type": "main", "index": 0}]]}}}