n8n: frequently asked questions¶
Short answers about the n8n agent. Each answer links to the guide that explains it step by step. For general questions (plans, billing, data), see AI Agents: frequently asked questions.
Signing in¶
How do I sign in to n8n?
Open the address from the "Your n8n is ready" email, or click Open dashboard in the client area. n8n asks you to sign in with:
- Email: the email of your LusoVPS account,
- Password: the service password from the same email.
Why does Open dashboard not sign me in, like Hermes?
n8n uses its own sign-in page. Sign in with your email and service password. Let your browser save the password so you do not have to look for the email each time.
I was signed out
n8n keeps you signed in for 7 days. Sign in again with your email and service password.
n8n says my email or password is wrong
Use the email of your LusoVPS account and the service password from the "Your n8n is ready" email. Copy the password without spaces. If you still cannot sign in, open a ticket.
AI keys and costs¶
Where do I put my AI key?
Inside n8n, not in the client area Settings tab. In n8n, go to Overview → Credentials → Create credential, choose your provider (for example Anthropic), paste the key and click Save. Every workflow can then use that credential.
The chat answers with an error about credit or the API key
Check your balance and the key in your provider's console (for Claude, the Anthropic Console). If you created a new key, open Credentials, click the credential and paste the new key.
Does a workflow with an AI step cost money?
Each time the AI step runs, your AI provider bills you for what it used. In the test chat, Logs shows the tokens each run used. A workflow that runs very often costs more.
Do templates cost money?
No n8n.io account and no payment were needed to copy a template in our test. Some templates connect to paid services (for example an AI provider): those services bill you directly.
More: n8n: start from a template.
Workflows¶
Is there a limit on the number of workflows?
No. Only the size of your server limits you.
Do I need to save?
n8n saves your changes by itself a few seconds after you make them. You can also press Ctrl+S (Cmd+S on Mac).
More: A quick tour of the screens.
My workflow works when I click Execute, but not on its own
The workflow must be published. Click Publish at the top right. After each change, click Publish again: the live version is the one you published last.
More: A quick tour of the screens.
Do I need to keep n8n open in my browser?
No. Published workflows run on your agent (the server), not in your browser.
More: Run a workflow on a schedule.
My scheduled workflow runs at the wrong hour
Check Timezone in the workflow Settings (the ... next to the workflow name). On our agent it was Default - Europe/Lisbon. Then click Publish again.
More: Run a workflow on a schedule.
How do I stop a workflow from running on its own?
Click the arrow next to Published and choose Unpublish, then confirm. The workflow and its runs are kept.
More: Run a workflow on a schedule.
How do I delete a workflow?
Click the ... next to the workflow name and choose Archive. n8n then shows Delete permanently, to delete it for good.
More: A quick tour of the screens.
Webhooks¶
My webhook answers that it is \"not registered\"
- With the Test URL (
/webhook-test/): click Listen for test event first. It works for one call only. - With the Production URL (
/webhook/): the workflow must be published.
Can anyone call my webhook?
Yes, anyone who knows the address, unless you set Authentication in the Webhook step. Do not post it in public places, and use a path that is hard to guess.
Errors and backups¶
How do I find out why a workflow failed?
Open Overview → Executions. Failed runs show Error. Click one to see which step failed and the error message, fix the step, and run it again.
How do I back up a workflow?
Open the workflow, click the ... next to its name and choose Export JSON. To load it back: ... → Import → From file.
Does the exported file contain my keys?
No. Credentials are not in the file, only their name. But anything you typed into the steps (prompts, addresses, a password pasted directly into a step) is in it. Check the file before you share it.
Where should I keep files on the server?
In /home/node/.n8n-files (shortcut ~/n8n-files). That folder is kept when the agent is updated.