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Interface

CouldNotInvoiceExceptionInterface

Magento\Sales\Api\Exception\CouldNotInvoiceExceptionInterface

What it does

This is a marker interface used to identify exceptions that occur when an invoice cannot be created in Magento 2.

Developers should throw exceptions implementing this interface when invoice creation fails due to validation errors, business logic constraints, or other issues.

It helps catch and handle invoice-related errors specifically in try-catch blocks.