climp

Open Google Sheets and create a fresh blank spreadsheet. Name it Climp Marketing DB.

Open Apps Script Editor

In the Google Sheet top menu, click on Extensions → Apps Script. A new tab will open with the script editor containing an empty Code.gs file.

Select and delete any existing placeholder code in Code.gs, then paste the full Climp Apps Script.

Deploy as Web App (Critical Settings)

In the Apps Script editor, click the blue Deploy button (top right) → New deployment.

Important: Setting "Who has access" to Anyone allows your browser client to sync via CORS with your personal sheet without requiring a server database.

Authorize Access & Copy Web App URL

Click Deploy. When prompted for authorization: click Authorize access → choose your Google account → click Advanced → click Go to Climp Database (unsafe) → click Allow. Copy the Web App URL ending in /exec.

Brevo provides a permanent free tier of 300 emails per day with SPF/DKIM support and zero credit card required.

In your Brevo dashboard: click your account name (top right) → SMTP & API → click Generate a new API key. Name it Climp Marketing and copy the key (starts with xkeysib-...).

In Brevo, navigate to Senders, Domains & Dedicated IPs. Add the email address you wish to send from (e.g. newsletter@whichdrive.in) and click the verification email sent to your inbox.