SenderInterface
Magento\Sales\Model\Order\Invoice\SenderInterface
What it does
This interface defines the contract for sending invoice notification emails to customers in Magento 2.
Developers implement this interface to create custom invoice notification senders or use the default implementation to send invoice emails when an invoice is created.
It's primarily used in the order processing workflow to automatically or manually notify customers about their invoices.
Public Methods
- send()