Order is automated synchronized when submitting invoice but automatically synchronization is turned off
Steps to reproduce
Go to Magento Admin panel - Salesforce - Configuration - Orders - Order Configuration
Set the "Automated Synchronization" option to "No"
Expand Advanced tab and:
Set the "Create Order" option to "For paid order "
Set the "Create Opportunity" option to "No"
Go to Magento Admin panel - Salesforce - Configuration - Invoices
Set the "Enable Invoice Synchronization" option to "Yes"
Go to Magento Frontend and place order
Go to Magento Admin panel - Sales - Orders - edit order - submit invoice
Select Salesforce tab and pay attention to Salesforce order id
In this case order is automatixally synchronizaed bacause Invoice synchronization has dependencies with order