When payment of welfare sales invoice is received, mark invoice paid, move copy of invoice from open invoice folder to paid invoice folder noting check number and date for payment, enter new store voucher into the store program (exclude from accounting) using the last working date of the month and give check to Bookkeeper for recording and deposit. Review daily sales sheet for accuracy, gaps in Z totals (indicate on store voucher the reason opening Z differs from prior days closing Z), completeness including listing of credit card slips and batch summary, void slips, exempt sales, gift certificates validation for both sale and redeeming, signatures, etc.