Automation library · Customer support

Draft customer support email replies with Gmail

Started by a clock, and works across Gmail, Google Drive, Google Sheets, Telegram and one other. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 17 steps: a working afternoon to understand properly.

MediumCalls a model: OpenAIRetrieval

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17 stepsMedium: a working afternoon
0Branches: places the flow splits
0Loops or waits
5Services it connects to

The flow

Starts it 3Model 9Logic 1Service 4

The steps in the order they run, from what starts it.

  1. 1When Testing WorkflowManual triggerStarts it
  2. 2Rebuild KB Daily at 6AMSchedule triggerStarts it
  3. 3Split Document into ChunksText Splitter Recursive Character Text SplitterModel
  4. 4Embed Knowledge Base ChunksEmbeddings Open AiModel
  5. 5When New Customer Email ArrivesGmail triggerStarts it
  6. 6Utilize GPT-4o-mini AILm Chat Open AiModel
  7. 7Embed Support QueryEmbeddings Open AiModel
  8. 8Fetch Knowledge Base DocGoogle DriveService
  9. 9Load Document for ChunkingDocument Default Data LoaderModel
  10. 10Store KB in MemoryVector Store In MemoryModel
  11. 11Filter Out Automated EmailsFilterLogic
  12. 12AI Draft Customer ReplyAgentModel
  13. 13Retrieve KB from MemoryVector Store In MemoryModel
  14. 14Draft Reply via GmailGmailService
  15. 15Query Knowledge BaseTool Vector StoreModel
  16. 16Notify Draft Completion via TelegramTelegramService
  17. 17Append to Support Log SheetGoogle SheetsService

How it's built

Starts on
A clock
Steps
17
Size
Medium: a working afternoon
Connects to
Gmail, Google Drive, Google Sheets, Telegram, in-memory vectors
Model
OpenAI
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

An n8n account, plus your own Gmail, Google Drive, Google Sheets, Telegram and in-memory vectors accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

Yes. It calls OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 17 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 17 steps before you point it at anything that matters.