You'll install Firebase's pre-built "Trigger Email" extension. No code, no command line — all done through the Firebase Console.

1. Upgrade to the Blaze plan (required for extensions). In Firebase Console → ⚙ → Usage and Billing. Click Modify plan → choose Blaze. You'll add a credit card but the free tier covers your volume — emails are free up to ~100/day, then ~$0.40 per 1000 sent. Set a budget alert at $5/month for safety.
2. Create a SendGrid free account (handles email delivery). Go to signup.sendgrid.com. Sign up with your email. Verify your email address when prompted. Free tier: 100 emails/day forever.
3. In SendGrid, click Settings → API Keys → Create API Key. Name it "production-planner". Pick Restricted Access → Mail Send: Full Access. Click Create & View. Copy the key now — SendGrid won't show it again.
4. In SendGrid, also go to Settings → Sender Authentication → Single Sender Verification. Click Create New Sender. Enter your name, your email (e.g., vladimir@integrafoods.net), company info. Click Create. Check your email and click the verification link SendGrid sends.
5. Back in Firebase Console, in the left sidebar click Build → Extensions (or use the URL console.firebase.google.com/project/YOUR-PROJECT/extensions).
6. Click Explore extensions hub. Search "Trigger Email". Click the result by Firebase ("Trigger Email from Firestore"). Click Install in console.
7. Pick your Firebase project. Click through. When you reach Configure extension:
   • SMTP connection URI: smtps://apikey:YOUR_SENDGRID_KEY@smtp.sendgrid.net:465 (replace YOUR_SENDGRID_KEY with the API key from step 3)
   • Email documents collection: mail
   • Default FROM address: the SendGrid-verified sender from step 4 (e.g., vladimir@integrafoods.net)
   • Leave other fields at defaults
8. Click Install Extension. Wait ~3 minutes for provisioning. Done.

To add SMS later, install the "Send Messages with Twilio" extension following a similar process. Twilio account required — ~$1/month for a phone number plus per-SMS cost.

You're going to create a free Firebase project that holds the shared data. ~7 minutes.

1. Open console.firebase.google.com in a new tab, sign in with your Google account.
2. Click Create a project. Name it anything (e.g., "integra-production"). Disable Google Analytics — you don't need it. Click Create project and wait ~30 seconds.
3. In the left sidebar, click Build → Firestore Database. Click Create database. Choose Start in production mode. Pick a region close to you (e.g., us-east1 or us-central1). Click Enable.
4. Once Firestore is created, click the Rules tab at the top. Replace the existing rules with the block below, then click Publish:

rules_version = '2';
service cloud.firestore {
  match /databases/{database}/documents {
    match /app/{document=**} {
      allow read, write: if true;
    }
    match /archive/{document=**} {
      allow read, write: if true;
    }
  }
}

Note: these rules allow anyone with your config to read/write. The shared passcode below is your application-level auth. For higher security later, you can add Firebase Auth.

5. In Firebase Console, click the ⚙ Project settings icon (top of left sidebar).
6. Scroll down to Your apps. Click the </> Web icon to register a web app. Give it any nickname. Click Register app.
7. Firebase will show you a JavaScript config object like const firebaseConfig = {...}. Copy just the inner JSON (the part between the curly braces, including the braces themselves) and paste it into the field below.