Go to Settings → Billing
Under Payments Tab, add your payment card here.
This isn’t for your subscription (that’s already active).
This card covers extra usage costs like email sends, SMS/phone credits, or add-on features.
Go to Payments → Integrations
Connect your payment processor (e.g., Stripe, PayPal).
This enables you to receive payments from your own customers for appointments, invoices, or products.