Provide the answer for below Magento 2.3 question with Explanation

Question

Do you need to send the Invoice data to an ERP system after the invoice is successfully created at Magento? How do you implement this?

1. Use sales_order_invoice_register observer
2. After plugin to the Invoice Repository Save method
3. Preference to the Invoice core class

Answer 1

If you want to synchronize Magento data with ERP system then you need to sync it, and the best method is you should use observer to do this synchronization.