When I first speak with a QuickBooks user, I tell them three things:
#1 QuickBooks is very easy to use
#2 QuickBooks is very easy to mess up
#3 QuickBooks is very easy to fix
Most errors I find in QuickBooks deal with the transactional flow. Your homepage guides you in creating a correct flow of a transaction. For Example: here’s the standard invoice workflow for invoicing:
If you create an invoice, you have to receive payment on said invoice, then you deposit payment to the bank account. If you skip the receive payment step, you’ll create an incorrect Accounts Receivable balance. If you don’t create invoices, then you can skip the receive payment step, and go straight to record deposits.
The same applies to bill payments. If you enter a bill, you must write the check by paying the bill.
If you skip entering a bill, then you can go straight to writing a check. When/if you skip a step, you have to go to the last step, void it, then re-enter it the correct way. Following the transactional flow will keep you from making common mistakes, and save you time and money in the long run.