Automation library · AI assistants

Detect duplicate form submissions & send AI responses

Started by an event in a connected app, and works across Gmail. It hands the judgement calls to Gemini. 15 steps, 1 branch: a working afternoon to understand properly.

MediumCalls a model: Gemini

15 stepsMedium: a working afternoon
1Branch: places the flow splits
0Loops or waits
1Service it connects to

The flow

Starts it 1Model 6Logic 4Service 4

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

  1. 1Form Submission ReceivedJot Form triggerStarts it
  2. 2Gemini LLM (Welcome)Lm Chat Google GeminiModel
  3. 3Parse Welcome Email JSONOutput Parser StructuredModel
  4. 4Validate Email FormatOutput Parser StructuredModel
  5. 5Gemini LLMLm Chat Google GeminiModel
  6. 6Extract Submission DataSetLogic
  7. 7Generate Welcome EmailAgentModel
  8. 8Compose Rejection EmailAgentModel
  9. 9Fetch All Form SubmissionsHttp RequestService
  10. 10Send Welcome EmailGmailService
  11. 11Deliver Rejection NoticeGmailService
  12. 12Unpack Submission ObjectsSplit OutLogic
  13. 13Filter Active SubmissionsFilterLogic
  14. 14Check Duplicate CountIfLogic
  15. 15Delete Duplicate SubmissionHttp RequestService

How it's built

Starts on
An event in a connected app
Steps
15, with 1 branch
Size
Medium: a working afternoon
Connects to
Gmail
Model
Gemini

Questions

What does it need to run?

An n8n account, plus your own Gmail account, and a key for Gemini. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an event in a connected app.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 15 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 15 steps before you point it at anything that matters.