# Automate event registration and reminder emails with Forms: n8n workflow > Started by someone submitting a form, and works across Gmail and Google Sheets. 28 steps, 4 branches, 4 loops or waits: large, and worth reading before you... Source: https://millionrounds.com/workflow/automate-event-registration-and-reminder-emails-with-forms (Millionrounds; every figure on the page links to its filing or article) [Automation library](https://millionrounds.com/workflows) · [Scheduling](https://millionrounds.com/workflows?category=Scheduling#library) # Automate event registration and reminder emails with Forms Started by someone submitting a form, and works across Gmail and Google Sheets. 28 steps, 4 branches, 4 loops or waits: large, and worth reading before you trust it with anything live. Large [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fautomate-event-registration-and-reminder-emails-with-forms) **28 steps** Large: read it before trusting it with anything live **4** Branches: places the flow splits **4** Loops or waits **2** Services it connects to ## The flow Starts it 2 Logic 16 Service 10 The steps in the order they run, from what starts it. - 1 **Event Registration Form3** Form trigger *Starts it* - 2 **Schedule Trigger2** Schedule trigger *Starts it* - 3 **Edit Fields4** Set *Logic* - 4 **Edit Fields5** Set *Logic* - 5 **Switch2** Switch *Logic* - 6 **Read Existing Registrations2** Google Sheets *Service* - 7 **Get Confirmed Aptitude Candidates2** Google Sheets *Service* - 8 **Check for Duplicate Email2** Code *Logic* - 9 **Filter Reminder Candidates2** Code *Logic* - 10 **If Not Duplicate2** If *Logic* - 11 **Switch Reminder Type2** Switch *Logic* - 12 **Store Registration (Google Sheets)3** Google Sheets *Service* - 13 **Loop 3-Day2** Split In Batches *Logic* - 14 **Loop Event-Day2** Split In Batches *Logic* - 15 **Add Status & Event Date3** Set *Logic* - 16 **Send 3-Day Reminder2** Gmail *Service* - 17 **Send Event-Day Reminder2** Gmail *Service* - 18 **Check Registration Success3** If *Logic* - 19 **Prepare 3-Day Update2** Code *Logic* - 20 **Prepare Event-Day Update2** Code *Logic* - 21 **Send Welcome Email3** Gmail *Service* - 22 **Send Admin Alert3** Gmail *Service* - 23 **Wait5** Wait *Logic* - 24 **Wait6** Wait *Logic* - 25 **Code in JavaScript4** Code *Logic* - 26 **Update 3-Day Status3** Google Sheets *Service* - 27 **Update Event-Day Status2** Google Sheets *Service* - 28 **Update Welcome Email Status3** Google Sheets *Service* ## How it's built - **Starts on:** Someone submitting a form - **Steps:** 28, with 4 branches, 4 loops or waits - **Size:** Large: read it before trusting it with anything live - **Connects to:** Gmail, Google Sheets - **Model:** None. This is plumbing, not judgement ## Questions What does it need to run? An n8n account, plus your own Gmail and Google Sheets accounts. You connect your own accounts after importing it; none are included. What starts it? It starts on someone submitting a form. Does it use AI? No. Every step is fixed logic or a call to a service, so it does the same thing every time. How long does it take to set up? Take your time. At 28 steps it is large: read it before trusting it with anything live. How do I import it? Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts. **Before you run it** Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 28 steps before you point it at anything that matters. ## Run it in n8n - **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n) - **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fautomate-event-registration-and-reminder-emails-with-forms) - **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts. Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind. ## Connects to Each opens the other workflows that use it. [Gmail](https://millionrounds.com/workflows?service=Gmail#library)[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library) ## Workflows like it Also scheduling, with the same services where possible, closest in size first. - [**Personal AI agent with Gemini and Gmail** 28 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/personal-ai-agent-with-gemini-and-gmail) - [**AI-powered bug reporting & tracking** 29 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/ai-powered-bug-reporting-and-tracking) - [**Log Telegram client updates to Notion and Google Sheets** 27 steps · calls a model · Google Calendar, Google Drive](https://millionrounds.com/workflow/log-telegram-client-updates-to-notion-and-google-sheets) - [**Manage Google Calendar and Gmail from Telegram with Claude** 27 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/manage-google-calendar-and-gmail-from-telegram-with-claude) - [**Manage legal client intake and consultations with Telegram** 29 steps · calls a model · Google Calendar, Google Sheets](https://millionrounds.com/workflow/manage-legal-client-intake-and-consultations-with-telegram) - [**Manage tasks, email & calendar with OpenAI and Gmail** 27 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/manage-tasks-email-and-calendar-with-openai-and-gmail)