The difference hinges on when payment happens and how it affects accounts receivable. An invoice is used when you provide goods or services now but expect to be paid later. Creating an invoice records a receivable—the customer owes you money—and the sale stays on the books until payment is received. A sales receipt is used when payment is received at the time of the sale. It records the sale and immediately increases cash or bank and recognizes revenue without creating an accounts receivable. This distinction matters for tracking who owes you money and for cash flow. Use an invoice to bill later; use a sales receipt when payment is collected immediately (cash, check, or credit card at the point of sale).

Payroll calculations and tax filings in QuickBooks are handled by the payroll module. This module is designed to calculate employee wages, deductions, employer taxes, and to prepare and file the required payroll tax forms, keeping up with current tax rules. It supports automatic tax calculations, withholding, direct deposit, and integration with tax agencies where available. Other modules focus on different tasks: the CRM module manages customer relationships, the Inventory module tracks stock and costs, and the Reporting module creates business reports but does not perform payroll calculations or filings. So, the payroll module is the one you use for payroll calculations and tax filings.

When you want to modify which data appears on a customized form, you work with the data layout controls. The option to Customize Data Layout opens the area where you can add or remove fields, rearrange their order, and adjust which data elements show up on the form. This is the right place to change a field because it directly governs the fields themselves, not just the form’s look. For example, you can toggle fields like customer phone or ship-to address and move them to a different position within the layout there. The other options serve different purposes: memorizing saves the current form as a reusable template; the Formatting tab handles fonts, sizes, and basic alignment; Customize Design focuses on the overall appearance and visual styling of the form rather than which fields are included. Hence, to change a field, Customize Data Layout is the correct choice.

The main concept being tested is adding an extra verification step at sign-in. Two-factor authentication requires a second form of proof beyond the password—such as a code from an authenticator app, a SMS code, or a security key—so you must present something you know (the password) and something you have (the second factor) to access QuickBooks Online. This dual requirement makes it much harder for someone to break in if your password is compromised. Other options don’t provide this ongoing second-check at login. Password reset or security questions are used mainly for account recovery, not for confirming identity at every sign-in. IP whitelisting controls which networks can access the account but doesn’t require the user to prove their identity at login with a second factor.