Automated Customer Support for Shopify Order Queries - n8n Workflow

• E-commerce store owners using Shopify looking to automate Tier 1 customer support.


• Support teams overwhelmed by repetitive 'Where Is My Order?' (WIMO) queries.


• n8n users seeking advanced examples of AI Agents, classification, and external tool usage.


• Developers interested in building smart n8n templates for CRM automation.

Handling repetitive customer inquiries, especially those asking about order status, can consume significant staff time. This sophisticated n8n workflow solves this challenge by providing instant, accurate, and personalized replies. The system uses a specialized n8n node for text classification to identify WIMO emails received via Gmail. Once identified, the query is passed to an AI Agent powered by OpenRouter, which is granted access to a Shopify n8n node tool. This allows the AI to retrieve real-time order details and construct a calm, friendly, and precise response, ensuring rapid customer satisfaction without manual intervention. This complete n8n workflow demonstrates the power of combining business systems with advanced AI models to achieve seamless CRM automation.

The entire process is initiated by the Gmail n8n trigger, which monitors your support mailbox for new messages every minute.

1. Trigger and Classification: When a new email is detected, the Gmail n8n trigger passes the data to the Text Classifier n8n node. This node categorizes the email snippet as either 'WISmo' (Where Is My Order) or 'other'.


2. Routing: If the email is classified as 'other', the n8n workflow terminates using the 'No Operation' node. If it is 'WISmo', the flow proceeds to the AI Agent n8n node.


3. AI Processing: The AI Agent n8n node receives the email content and executes a highly specialized system prompt (acting as a friendly Shopify Customer Support Assistant). The agent is connected to the OpenRouter Chat Model for large language model reasoning.


4. Tool Use (Shopify): Crucially, the AI Agent has access to the 'get order details' Shopify n8n node. The agent intelligently uses this tool to search for the relevant order based on the prompt (fetching order status, shipment dates, etc.).


5. Final Reply: The resulting generated text output from the AI Agent—a polite, accurate response—is sent to the final Gmail n8n node, which replies directly to the original thread, completing the automation cycle provided by this n8n template.

To deploy this powerful n8n workflow, follow these steps:

1. Import: Copy the provided JSON data and import it directly into your n8n instance using the 'New' -> 'Import from JSON' option.


2. Gmail Credentials: Set up credentials for the Gmail n8n trigger and the final Gmail n8n node. This requires OAuth 2.0 access to the mailbox you want to monitor.


3. OpenRouter Setup: Open the OpenRouter Chat Model n8n node. Create or select your OpenRouter API credential (refer to the Sticky Note in the workflow for links).


4. Shopify Credential Setup: Configure the Shopify n8n node ('get order details'). This requires an Access Token and API Secret. As detailed in the workflow’s sticky note, you must create a Private App in your Shopify admin, grant it read_orders scope, install the app, and paste the Access Token and Subdomain into the Shopify credential setup.


5. Activation: Ensure all nodes are correctly configured. Test the n8n workflow by sending a test email (e.g., "Where is my order #1234?") to your monitored mailbox, and then activate the n8n workflow.

Gmail Trigger: This n8n trigger starts the automation. It is configured to poll a specified Gmail mailbox every minute, looking for new messages to classify and process.
Text Classifier1 (LangChain): This crucial n8n node uses defined categories ('WISmo', 'other') and descriptions to classify the incoming email snippet, directing only support inquiries to the expensive AI components.
AI Agent1 (LangChain): The core of the intelligence. This n8n node defines the AI's role and logic, specifically instructing it on how to handle missing order IDs and how to use the available Shopify tool.
OpenRouter Chat Model (LangChain): This n8n node serves as the large language model backend for the AI Agent, utilizing a model like openai/gpt-5-nano to execute the reasoning and prompt following defined in the agent.
get order details (Shopify): Functions as the data retrieval tool for the AI Agent. It is configured to perform the getAll operation to allow the agent to look up order information necessary for generating the response. This is a vital n8n node for data context.
Reply to the query (Gmail): This final n8n node completes the customer service loop. It uses the reply operation and dynamically inserts the AI Agent's generated output ({{ $json.output }}) into the email thread specified by the original email's threadId.