Automation library · Customer support

Smart email assistant: automate customer support with Supabase

Started by an arriving email, and works across Gmail, Google Drive, Supabase and Supabase vectors. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 20 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: OpenAIRetrieval

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20 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
4Services it connects to

The flow

Starts it 3Model 11Logic 2Service 4

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

  1. 1Email MonitorGmail triggerStarts it
  2. 2OpenAI Chat Model2Lm Chat Open AiModel
  3. 3OpenAI Chat Model3Lm Chat Open AiModel
  4. 4Embeddings OpenAI1Embeddings Open AiModel
  5. 5File CreatedGoogle Drive triggerStarts it
  6. 6File UpdatedGoogle Drive triggerStarts it
  7. 7Recursive Character Text SplitterText Splitter Recursive Character Text SplitterModel
  8. 8Embeddings OpenAIEmbeddings Open AiModel
  9. 9Create DraftGmail ToolService
  10. 10AI Email ClassifierOpen AiModel
  11. 11AI Response GeneratorAgentModel
  12. 12Vector Store Tool1Tool Vector StoreModel
  13. 13Supabase Vector StoreVector Store SupabaseModel
  14. 14Set File IDSetLogic
  15. 15Default Data LoaderDocument Default Data LoaderModel
  16. 16Insert into Supabase VectorstoreVector Store SupabaseModel
  17. 17Route EmailSwitchLogic
  18. 18Delete Old Doc RowsSupabaseService
  19. 19Download FileGoogle DriveService
  20. 20Extract Document TextExtract From FileService

How it's built

Starts on
An arriving email
Steps
20, with 1 branch
Size
Medium: a working afternoon
Connects to
Gmail, Google Drive, Supabase, Supabase 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, Supabase and Supabase vectors accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an arriving email.

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. 20 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 20 steps before you point it at anything that matters.