There is a slight difference between "Select Receipts to void" and "Select Items on Return" option.
Items/Services may be returned back to vendor due to rejection. Receipts transactions that are returned will be considered for invoice.
Store Keeper will void the receipt due to incorrect entry. A
receipt that is voided is similar to a return, with the exception that a
receipt that is voided cannot be considered for use on a credit
invoice. Receipt transactions that are voided are not included on
invoices.
Case 1: Select Items for Return button to return item RESISTOR2 in PO 1080
Invoice 1069 for PO 1080 has the returned line as well in Material Receipts section. This pop up is displayed by Copy PO lines button.
Case 2: Select Receipts to Void for services on PO 1078.
Invoice 1068 for PO 1078 on voiding the Receipts display no lines in the Invoice.
Reference:
http://pic.dhe.ibm.com/infocenter/tivihelp/v60r1/index.jsp?topic=%2Fcom.ibm.mbs.doc%2Freceipts%2Ft_void_receipts.html