Final answer:
One of the first steps to replace a lost paycheck in QuickBooks is to void the original paycheck and generate a replacement check with the same date and amount.
Step-by-step explanation:
One of the first steps to replace a lost paycheck in QuickBooks, after stopping payment on the original paycheck with the bank, is to void the original paycheck in QuickBooks. This ensures that the incorrect payment is not included in any financial reports or calculations. After voiding the original paycheck, you can then generate a replacement check in QuickBooks using the same date and dollar amount as the original paycheck.