In solving Test Question 4 of Chapter 16, page 111 on the free lecture notes (ACCA-Paper-F3-notes-December-2011-OpenTuition.pdf), I do not understand why error (2) “The total of the purchase return journal was undercast by $1,000? was not corrected in the payables ledger. Shouldn’t this be debited to the payables ledger to reduce liability?