Generate invoices: Telegram
Fires the moment a webhook arrives across Telegram and Notion, rolls the rows up into a few numbers, then runs the custom logic in a Code node. Built for ocr & extraction, around a "Gather API Numbers" step, in 8 documented nodes.
Generate invoices with HTTP / REST API and Notion without manual work. An original, ready-to-import n8n workflow built around the 'Document Generation' pattern for legal & compliance. It fires on a webhook and orchestrates 8 nodes across Telegram, HTTP / REST API, Notion. Retry-on-fail is enabled on external calls. Import the JSON, add your credentials, and adapt the parameters. Nothing slips through the cracks.
Key benefits
- ✓Keeps Telegram and Notion in step for ocr & extraction, without anyone re-typing a row
- ✓A failed Telegram or Notion call is retried rather than dropped, at any of the 8 nodes in this ocr-&-extraction build
- ✓Pinned sample data ships with it — run all 8 nodes for ocr & extraction before wiring Telegram
- ✓8 nodes, each with a doc card explaining what it does for ocr & extraction
Use cases
- →Teams keeping Telegram and Notion aligned by hand for ocr & extraction
- →Pushing ocr-&-extraction events into Telegram and Notion the moment they land, not on the next poll
- →Ocr & extraction work where "Gather API Numbers" is still a manual step before Telegram
- →Ocr & extraction work that only reaches Telegram when a webhook arrives, when someone remembers to start it
Integrations
Workflow preview (8 nodes)
The template's actual node layout and connections. Node parameters and credential slots unlock with the download.
What's inside (8 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
Foundation levelA starter-sized build - small enough to hold in your head while you learn the pattern.
- •Moving data between Telegram and Notion in a single run
- •Rolling many rows up into a few reportable numbers
- •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 download. 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 (Telegram, HTTP / REST API, Notion). 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.
Related templates
Digest meeting notes: Slack for contracts
Contracts on n8n: runs when a webhook arrives across Slack, Google Sheets, Notion and Telegram, starting at "Collect Raw Text". Pulls structured fields out of free text. 22 documented nodes.
Issue contracts for invoices
Invoices on n8n: runs when a webhook arrives across Google Sheets, Google Drive, Telegram and Notion, starting at "Download from Google Drive". Parses the incoming file into rows. 31 documented nodes.
Summarize long emails: Airtable for invoices
Invoices on n8n: runs when a webhook arrives across Airtable, Telegram, Slack, Google Sheets and Notion, starting at "Normalize Document Payload". 31 documented nodes.
Create invoices with Notion
Summarization on n8n: runs when a webhook arrives across Notion, Telegram and Slack, starting at "Download Source File". Parses the incoming file into rows. 13 documented nodes.