The "Other" button on the POS interface contains various functions, such as uploading retail documents, updating basic information, etc. The following is an example of returning goods:

Starting a return is to process customer returns and generate negative invoices to offset the original sales record.

Return process: Select "Other" - "Start Return" on the POS main interface, and enter all items as negative numbers (return). Click "Other" - "End Return", the system generates a negative number document, and the return is successful.