Leads into Google Sheets

Why this breaks in production

• critical

  Webhook "Nuovo lead dal sito" can fire side effects twice

  Duplicate delivery can mean double charges or double customer emails.

  Fix → Store the provider event id; if you've seen it, skip every create/send node.

• high

  Nobody gets alerted when this workflow fails

  You may think an email or invoice finished when it actually stopped halfway - and no one is paged.

  Fix → In n8n Settings, set an Error Workflow (or add an Error Trigger flow) that Slack/emails your team with the failed run link.

• high

  "Salva nel Registro Lead" can fail with no backup path

  Customers get silence, duplicate retries, or a half-finished experience with no internal alert.

  Fix → Turn on retry for transient SMTP/API errors, and route hard failures to an error branch that alerts someone.

• high

  "Avvisami su Telegram" can fail with no backup path

  Customers get silence, duplicate retries, or a half-finished experience with no internal alert.

  Fix → Turn on retry for transient SMTP/API errors, and route hard failures to an error branch that alerts someone.