how/ where would i record this? pictures of both the cash receipt prelist and cash journal are attached

Received an email notification from First American Bank and Trust for an ACH payment from Branch College. ACH payment received was $1,622.88 for payment in full of charge sale invoice No. 730 . - Because Branch College paid within ten days of the original sale, be sure to record the applicable discount. WAREN SPORTS SUPPLY CASH RECEIPTS PRELIST CASH RECEIPTS JOURNAL November and December