Gmail campaign sender: Bulk-send emails and follow up automatically if no reply

This workflow allows you to send multi-step email campaigns using n8n, Gmail and Google Sheets. You define a sequence of emails, and a list of email addresses to send them to. The first email is sent to everyone, but the later emails in the sequence are only sent if no-one has replied to the thread yet. This means you only need to worry about replying to people who respond to your email, not chasing people who don’t. Requirements A list of emails in a Google sheet. You can define extra info that will be available to your email templates (e.g. name, company, etc.) A sequence of emails to send, plus how long to wait to send each one, e.g. On day 0: “Hi, {name} — nice to meet you at the confere

Help me set up the n8n workflow "Gmail campaign sender: Bulk-send emails and follow up automatically if no reply" (https://n8n.io/workflows/2137). It uses: Google Sheets, Gmail, Code. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.