How to Automate Enquiry Replies in n8n with Approval

To automate enquiry replies in n8n with approval, connect the inbox, gather the relevant business context, generate a draft and send an approval request to a staff member. Put the customer email step after the approval gate. I checked n8n’s documentation and pricing page on 12 November 2026, and the workflow below is a design built from them.

What Can n8n Do for Enquiry Replies on Its Own?

n8n supplies the workflow connections and email operations. The Gmail node supports drafts, messages and thread replies. Writing a reply with AI requires a connected chat model, which carries a separate cost. The AI Agent node also requires at least one connected tool.

Your inbox credentials, CRM connection, approved answers and routing rules need configuring. If a CRM has no usable connection, design a manual step. I’d decide who owns each enquiry before choosing the model; the enquiry follow-up strategy guide covers that part.

How Do You Build an n8n Enquiry Reply Workflow?

1. Trigger on an enquiry. Connect the Gmail Trigger and filter the workflow to enquiries, such as a web-form label or sender rule. Gmail polls, so detection depends on the polling interval. Its default filter is unread emails only. For Microsoft users, the Outlook Trigger lists Message Received as its event.
2. Gather useful context. Include the enquiry, form fields, relevant CRM history, service area, availability and approved answers. I’d include explicit rules for prices, dates and questions requiring judgement. Give the drafting step enough information to answer accurately without feeding it the entire contact database.
3. Draft the reply. Connect the AI model and configure the agent’s tools. Ask for a reply that answers the enquiry, requests missing details and proposes a next step. Instruct the model to avoid quoting prices or promising dates unless an approved rule and current information allow the commitment.
4. Request approval. Send the proposed recipient, subject, exact reply and relevant context to the owner or office manager. Use Gmail approval, Slack approval or human review on the agent’s sending tool. Design separate paths for approval, decline and no response. Treat an edited reply as a new version requiring approval.
5. Send the approved reply. Route only an approval to Gmail’s Reply operation, using the original message reference. Check the recipient settings before launch. Route a decline to manual editing; the Create Draft operation accepts a thread ID to attach the draft to the conversation.
6. Record the outcome. Configure a CRM or sheet connection to record the enquiry reference, draft, approval outcome, approver where available and send time. Keep an outstanding task when sending fails. Test approval, decline, missing context, no response and failed sending before using the workflow on customer enquiries.

This sequence is a design to build and test. For a smaller starting point, save the reply as a Gmail draft and let a person review and send inside Gmail. The Gmail enquiry reply guide covers that inbox approach.

Which n8n Approval Option Suits a Small Team?

Agent review channels include n8n Chat, Slack, Discord, Telegram, Microsoft Teams, Gmail, WhatsApp Business Cloud, Google Chat and Microsoft Outlook, according to the human review documentation. The agent’s system prompt should explain which tools require approval and how to handle denial.

I’d start with the approval channel the responsible person checks during the working day. The human approval guide explains how to choose the decisions that need review.

What Happens When Nobody Approves in Time?

A paused workflow needs an owner and a deadline. I’d design an overdue check that alerts a second person or creates a task, then keeps the enquiry visible until someone handles it. Silence should never authorise sending.

The Wait node documents database storage while paused and an optional limit for resuming execution. n8n’s Gmail documentation does not list a time limit on the Send and Wait for Approval operation. Build and test the overdue path explicitly, including what happens if approval arrives after someone has replied manually.

What Does n8n Cost, and Should You Self-Host?

The following n8n prices are billed annually, in euros, as published at November 2026. AI model usage is separate.

The pricing page defines an execution as one run of the entire workflow, regardless of step count. Treat one enquiry through the proposed workflow as roughly one execution, then check actual usage. Avoid budgeting from the number of nodes.

As at November 2026, the same page states that n8n Cloud stores hosted data in Frankfurt, Germany. The self-hosted Community edition runs free without a licence key, but someone must pay for hosting and maintain updates, backups and credentials.

Self-hosting lets you choose a location, including an Australian cloud region. I’d choose it when location or operational control warrants the upkeep. Check the connected AI provider and CRM separately; choosing the n8n server location does not settle every system’s storage arrangements. The Australian data location guide covers that question.

What Would the Workflow Look Like for Real Estate?

Example: a rental enquiry arrives at a real estate office for one of its properties. The proposed workflow retrieves the property details and shared calendar availability, drafts inspection options and asks the office’s approved pre-qualification questions.

The property manager checks the property, times and wording before approving. Missing availability creates a manual task. I’d keep tenancy decisions and uncertain answers with the property manager.

Should You Build This Yourself or Have Someone Run It?

I’d build it internally when someone can own credentials, routing rules, testing and ongoing failures. Start with one enquiry type and a Gmail draft. The n8n workflow guide for small businesses provides broader context.

For an Australian service business that wants enquiry replies designed, built and then run around its existing inbox and CRM, with a person approving anything sensitive, Truespeak is built for exactly that.

I’m Sonny Hovsepian, Truespeak’s Sydney-based founder. Clients work directly with me. At Haus Bright, my own e-commerce business, I automated customer service enquiries and built Zapier automations to capture customer details. Truespeak handles enquiry response and lead follow-up automation, then monitors failures, reviews exceptions and improves rules after launch. Where a tool has no usable connection, the step stays manual.

Bring an enquiry example and your approval rules to a discovery call with me, and I’ll map the context, connections and ongoing responsibilities the workflow needs.