Automation library · Content

Send post-purchase emails from Postgres with Gmail and Groq AI

Started by a clock, and works across Gmail and Postgres. It hands the judgement calls to Groq. 16 steps, 1 branch, 3 loops or waits: a working afternoon to understand properly.

MediumCalls a model: Groq

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16 stepsMedium: a working afternoon
1Branch: places the flow splits
3Loops or waits
2Services it connects to

The flow

Starts it 1Model 4Logic 6Service 5

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

  1. 1Format AI responseCodeLogic
  2. 2Get Product Usage TipsAgentModel
  3. 3Get Complementary ProductsAgentModel
  4. 4Code in JavaScriptCodeLogic
  5. 5Schedule TriggerSchedule triggerStarts it
  6. 6Groq Chat ModelLm Chat GroqModel
  7. 7Groq Chat Model1Lm Chat GroqModel
  8. 8Send Tips to UserGmailService
  9. 9Send Tips to User1GmailService
  10. 10Execute a SQL queryPostgresService
  11. 11Wait for 2 weeksWaitLogic
  12. 12Order Placed Ack.GmailService
  13. 13Wait until product get deliverWaitLogic
  14. 14Select rows from a tablePostgresService
  15. 15IfIfLogic
  16. 16Wait for a dayWaitLogic

How it's built

Starts on
A clock
Steps
16, with 1 branch, 3 loops or waits
Size
Medium: a working afternoon
Connects to
Gmail, Postgres
Model
Groq

Questions

What does it need to run?

An n8n account, plus your own Gmail and Postgres accounts, and a key for Groq. 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 Groq. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 16 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 16 steps before you point it at anything that matters.