Automation library · Lead generation

Reply to HubSpot form leads in seconds with Claude and Gmail

Started by another system calling it, and works across Gmail, HubSpot and Slack. 18 steps, 3 branches: a working afternoon to understand properly.

Medium

18 stepsMedium: a working afternoon
3Branches: places the flow splits
0Loops or waits
3Services it connects to

The flow

Starts it 1Model 1Logic 10Service 6

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

  1. 1When HubSpot Contact CreatedWebhookStarts it
  2. 2Normalize HubSpot DataCodeLogic
  3. 3Retrieve HubSpot Lead DetailsHubspotService
  4. 4If Form Submission ExistsIfLogic
  5. 5Set Lead Contact InfoSetLogic
  6. 6Skip Leads Without FormNo OpLogic
  7. 7Configure Reply SettingsSetLogic
  8. 8If Form is AllowedIfLogic
  9. 9Draft Reply with Claude AgentAnthropicModel
  10. 10Skip Non-Approved FormsNo OpLogic
  11. 11Prepare Email ContentSetLogic
  12. 12Slack Approve Reply DraftSlackService
  13. 13If Reply ApprovedIfLogic
  14. 14Retrieve Gmail SignatureHttp RequestService
  15. 15Skip Unapproved RepliesNo OpLogic
  16. 16Gmail Send EmailGmailService
  17. 17Record Reply in HubSpotHubspotService
  18. 18Post Sales Alert to SlackSlackService

How it's built

Starts on
Another system calling it
Steps
18, with 3 branches
Size
Medium: a working afternoon
Connects to
Gmail, HubSpot, Slack
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Gmail, HubSpot and Slack accounts. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 18 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 18 steps before you point it at anything that matters.