Hey there, @joearaneta.
Thanks for reaching out in the QuickBooks Community. As we're waiting for your response to Fiat lux question, we'd like to suggest contacting your CRM software provider first.
This will help us check if they are integrated with QuickBooks Online.
In the meantime, you can search for the Apps that works with QuickBooks in link: https://quickbooks.intuit.com/app/apps/home
I'll be here if you have other questions. You take care and have a great day!