n8n Google Gemini Client Intake Classification + Gmail

Turn new client intake forms into categorized, logged, and emailed next steps—with Google Gemini + Gmail

This n8n workflow automatically reads your incoming client intake submissions, uses Google Gemini (PaLM/Gemini) to classify the project into a single category with reasoning, records the result in Google Sheets, and sends tailored follow-up emails to both your team and the client via Gmail.

What this workflow does

• Receives submissions from an n8n Form with the client’s name, email, and project description.
• Classifies the project by sending the description to Google Gemini using strict category definitions, returning structured JSON with:
  • category
  • reasoning
  • a partial-intent flag
• Logs results by appending the classification outcome to the original submission in Google Sheets (or marks it as a system error if classification fails after retries).
• Routes by category into: simple_automation, ai_workflow, custom_integration, ambiguous, or system_error.
• Notifies your team with an internal email via Gmail.
• Sends client acknowledgements via Gmail, with separate messaging for ambiguous and system_error cases.
• Handles invalid/unclear requests: if Gemini flags partial intent, the workflow asks your team to follow up and requests the client reply with more detail.

Use cases

• Classify inbound leads from an n8n Form so your team can route requests faster.
• Provide consistent, category-specific acknowledgement emails to clients without manual effort.
• Maintain a searchable history of intake submissions and Gemini classification outcomes in Google Sheets.

Technical details

• Tech stack / nodes used: if, set, gmail, switch, sticky note, form trigger
• Integrations: Google Gemini (PaLM/Gemini) API, Gmail OAuth2, Google Sheets OAuth2
• Category output: routed and emailed as simple_automation, ai_workflow, custom_integration, ambiguous, or system_error