From our testing, we noted that credit notes no. 820007923 and 820006924 occurred in FY2013 to decreased sales of 2012 that is improperly recorded. Therefore, we decided to extend the scope to collect total amount and found that credit note amount Baht 5,136,996 in total. Nonetheless, the client did not want to post adjustment entry, and since the amount is lower than 5% of materiality (Baht 19,000,000) so we pass the adjustment.