Checked the barcode application for checking the error encountered by the user when generating casepack items, and requested casepack PO and UPC to be used in checking, as per checking, I did not use a zebra printer I did not encounter the error encountered by the user. Checked the extraction processed, there are extraction queries in the middle of printing, and as per checking, it is extracting from mmpydlib (test library of Payless), did not modify yet as I need to confirm if this is where the data should be extracted. Advised Arvin on the findings and discussed that we will connect remotely to the user for checking on their side.