Welcome to Community, @malo21.

I'll share some insight about mapping customer invoices. QuickBooks record invoices to income and accounts receivable (A/R) by default. Thus, mapping them to deferred revenue is un-available. You'll have to record a journal entry.

I recommend consulting an accountant for best way to handle deferred revenue. You can visit our site to find an accountant near you: Find a ProAdvisor.

Here are some additional resources that'll help you manage customer-related tasks.

• How to link a bank deposit to an invoice.
• Topics about your company's income and customers.

Feel free reply to this thread if you have follow-up questions or concerns about mapping invoices. I'm more than willing to assist you. Take care and have a great day ahead.