Turn inbound support emails into Trello cards
Watches a Gmail support mailbox and turns each new conversation into a Trello card in the triage list, then replies in-thread so the customer knows it arrived.
A Gmail Trigger polls the support mailbox in full (non-simple) mode. A Set node flattens the message into six named fields — message id, thread id, sender name and address, subject and a truncated body. An IF stops anything without a parseable From address at a Stop And Error, because a card nobody can reply to is worse than no card. Remove Duplicates then keys on the Gmail thread id and drops any message belonging to a conversation already carded, which is what makes this safe to re-run. The Trello node opens the card with the body in the description, and a Gmail Reply sends the customer an in-thread acknowledgement. Both external calls retry with backoff and route failures to an error rail that captures the context and appends it to a Google Sheet.
Key benefits
- ✓Every support conversation lands on a board with an owner instead of disappearing into a shared inbox
- ✓The customer gets an in-thread receipt in under a minute, which removes the 'did you get my email?' follow-up
- ✓Thread-level de-duplication means a customer's fourth reply does not open a fourth card
- ✓Ships with three pinned sample emails — including a duplicate-thread case — so the whole path runs before Gmail is connected
Use cases
- →Small support teams working a shared Gmail alias with no helpdesk product
- →Agencies triaging client email onto a Trello board the client can see
- →Teams that want a ticket queue without paying per seat for Zendesk or Freshdesk
- →Anyone who has lost a customer email in an inbox and needed a paper trail afterwards
Integrations
Workflow preview (9 nodes)
The template's actual node layout and connections. Node parameters and credential slots unlock with the download.
What's inside (9 nodes)
A look at the node types this workflow uses. No purchase required — full parameters and credentials are yours after you buy.
From download to running in 3 steps
- 1Import. In n8n, open Workflows → menu → “Import from File” and pick the downloaded JSON.
- 2Connect. Add your own credentials on the app nodes - n8n highlights exactly which ones need them.
- 3Activate. Run it once to test, then toggle Active. The automation is live.
What you'll learn
Core levelA compact production shape: validation and error handling without extra machinery.
- •Moving data between Gmail, Trello and Google Sheets in a single run
- •Failing loudly on a bad run instead of letting it pass silently
- •Adding retries and an explicit error path to external calls
Every node carries its own documentation on the canvas, plus notes explaining why the architecture was built this way, a credential setup guide, troubleshooting, and three practice exercises. Sample data comes pinned to the trigger, so you can hit Execute and watch data flow before connecting a single account.
Common questions
What exactly do I get?
The complete, ready-to-import n8n workflow as a JSON file, delivered instantly after payment. Import it into your own n8n (cloud or self-hosted), add your credentials, and it runs.
How do I import it into n8n?
In n8n, open Workflows, click the three-dot menu, choose “Import from File”, and select the downloaded JSON. Then connect your own app credentials on the highlighted nodes.
Do I need anything else for it to work?
You need your own n8n instance and accounts/credentials for the apps this workflow connects to (Gmail, Trello, Google Sheets). No coding is required.
What if it doesn't work for me?
If the file is faulty, won't import, or isn't as described, contact us within 7 days and we'll fix it or refund you - see our refund policy.
Can I modify or resell it?
You can freely adapt and use it in your own or your clients' projects. Reselling or redistributing the template file itself is not permitted.
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