No payment method, no sales. WooCommerce gives you several options.

The usual choices

• Card payments through services such as Stripe or PayPal (free plugins).
• Bank transfer — simple, but the money arrives later.
• Cash on delivery — depending on your line of business.

Getting it running

Under Settings → Payments, enable the method and enter your account credentials for the service. Always place a test order before you open for business.

Important: offer card payments at the very least — that is what most customers expect.