E-Signature Webhook to Airtable Onboarding: Gmail, Trello & Slack

Automate e‑signature tracking and onboarding across Airtable, Gmail, Trello & Slack

When your e‑signature provider updates a contract status, this n8n workflow automatically verifies the webhook, writes the latest status to your Airtable “Contracts” table, and triggers client onboarding via Gmail, Trello, and a Slack notification—right when the document is completed.

What this workflow does

• Receives a POST webhook from your e‑signature tool whenever a contract status changes.
• Validates security by checking a shared secret provided in the request header (x-webhook-secret) or query parameter (token).
• Updates Airtable status when the contract is not yet completed—matching your record and saving the new status.
• Handles the completed case when the status is document.completed: it looks up the contract in Airtable using document_id, marks it as signed, and records the signed_date timestamp.
• Triggers onboarding in parallel: sends a welcome email via Gmail, creates an onboarding card in Trello, and posts an alert to a specified Slack channel.

Use cases

• SaaS onboarding: Start onboarding immediately after a signed agreement is received.
• Sales ops: Keep Airtable contract status current with every webhook update.
• Client communications: Send a welcome email and notify your team the moment a contract reaches document.completed.

Technical details

• n8n workflow category: e‑signature webhook automation
• Validation: uses if and configuration values (shared secret, Airtable base/table, Trello list ID, Slack channel ID)
• Core nodes: if, set, code, gmail, trello, slack
• Airtable requirement: Contracts table with fields document_id, client_name, client_email, status, signed_date and Airtable Personal Access Token credentials