Now when I create a new invoice from PO, then at the tab Summary there is automatically filled a PO number as an invoice number. We would appriciate some setting which would cause that this field wouldn't be filled out automatically and would stay empty. Our librarians are using other invoice numbers and current setting of Alma is leading to errors because sometime the librarian forgets to change the invoice number. We would appriciate if Alma wouldn't filled out the invoice number automatically with PO number. We would like only a warning by saving the invoice that the invoice number is empty so we'll have to fill out this number manually.