Do customers have to log in to make use of a payment plan?

To enable Guest Checkout for WooCommerce Deposit Orders, do the following:

1. Go to the WooCommerce > Settings > Accounts & Privacy > Guest checkout page and do the following:
   • Click on Allow customers to place orders without an account to allow customers to place orders without an account.
   • Click on Allow customers to log into an existing account during checkout to allow customers to log into an existing account during checkout.
2. Go to the WooCommerce > Settings > Accounts & Privacy > Account Creation page and do the following:
   • Click on Allow customers to create an account during checkout to allow customers to create an account during checkout.
   • Click on When creating an account, automatically generate an account username for the customer based on their name, surname or email to automatically generate an account username for the customer based on their name, surname or email.
3. Click Update.

Here is a video tutorial for using Guest Checkout: