If you're referring to link Facebook with QuickBooks Online, I'd suggest looking for third-party apps that can integrate the two software. You can also contact FB Support Team to check if they can consolidate into QuickBooks.
Please refer to this link to look for some information on how to organize your QuickBooks Online account and how to start creating transactions in the system and to run different reports: Help articles.
Please let me know if you have any other questions or if you're referring to something else. I'll be always around to help.