Seriously, some codes mean the item was on sale, discounted, discontinued, no tax -- like meds -- etc.
Nothing to lose sleep over. Throw it out and never go back.
Wal-Mart is Evil.
Their codes are not in letters but numbers. A Wal Mart store number will be in 1,2,3,or 4 digits. The best way is to ask a CSM,Customer Service Manager [a misnomer since they are non-manager associate(s)].
Sam's Club 6625+Bentonville Arkansas