WACKER uses digital signatures with the goal of maximizing paperless data transfer. This is why credits and consignment settlements are also preferably transmitted electronically. After all, this saves costs for printing, postage, scanning and handling, and the supplier receives the credit more quickly, resulting in a major process improvement. In doing so, of course, all legal stipulations of applicable VAT legislation are complied with. WACKER sends the credit notes to a centralized supplier email address. This email contains the credit as a PDF file, as well as a signature file and the verification report.