n8n automation that validates vendor registrations, calculates induction dates two business days ahead, and creates Google Calendar events automatically, while alerting admins on validation failures and system errors.
n8n · workflow canvasproduction build
Context
Vendor safety inductions were previously scheduled manually after registration, creating delays, missed follow-ups on incomplete forms, and extra admin work to calculate the correct event date and create calendar bookings.
Approach
Built two interconnected n8n sub-workflows: one that validates vendor intake, computes the induction date using a business-day offset, assembles the calendar payload, and creates the Google Calendar event; and a second error-handler workflow that captures failures and alerts the admin via Gmail.
Architecture
Webhook POST (vendor registration)
Validate required fields
Invalid: Gmail alert to Admin
Valid
Calculate induction date (+2 business days)
Build calendar event
Google Calendar event creation
Error Trigger: Log failed details
Gmail alert to Admin
Results
~2 hrs/weekScheduling admin time saved
EliminatedInduction booking errors
Instant alert, zero delayIncomplete-form follow-up