Create contracts: Gmail
Fires the moment a webhook arrives across Gmail, Slack and Google Drive, rolls the rows up into a few numbers, then runs the custom logic in a Code node. Built for invoices, around a "Gather API Numbers" step, in 13 documented nodes.
Create contracts with HTTP / REST API and Google Drive. An original, ready-to-import n8n workflow built around the 'Document Generation' pattern for legal & compliance. It fires on a webhook and orchestrates 13 nodes across Gmail, Slack, HTTP / REST API. Retry-on-fail is enabled on external calls. Import the JSON, add your credentials, and adapt the parameters. Your team sees the right data at the right time.
Key benefits
- ✓Keeps Gmail and Slack in step for invoices, without anyone re-typing a row
- ✓A failed Gmail or Slack call is retried rather than dropped, at any of the 13 nodes in this invoices build
- ✓Branches rejoin before Gmail, so a invoices run reports once rather than 13 times
- ✓Fans the same result out to Google Drive in the same run, for invoices
- ✓Pinned sample data ships with it — run all 13 nodes for invoices before wiring Gmail
Use cases
- →Teams keeping Gmail and Slack aligned by hand for invoices
- →Pushing invoices events into Gmail and Slack the moment they land, not on the next poll
- →Invoices work where "Gather API Numbers" is still a manual step before Gmail
- →Invoices work that only reaches Gmail when a webhook arrives, when someone remembers to start it
Integrations
Workflow preview (13 nodes)
The template's actual node layout and connections. Node parameters and credential slots unlock with the download.
What's inside (13 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.
- •Validating required fields before the write
- •Moving data between Google Drive, Gmail and Slack in a single run
- •Splitting one run into branches and merging the results back
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, Slack, HTTP / REST API, Google Drive). 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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