sync.

The  "sync" category focuses on how register works seamlessly with QuickBooks Online.  See how the app keeps your sales, inventory, and accounting data aligned. Dive into how refunds, returns, and discounts sync, how item and customer edits flow between systems, and what to expect when comparing register vs. QuickBooks. Learn to check your account sync status, map accounts correctly, and understand how customer information and sales activity are shared. This section also explains how income and expense accounts are used, ensuring your books stay accurate. With helpful guidance, this category is essential for anyone managing the financial side.