How are the PDF files named when downloaded? The name of the PDF files has the following structure: Date of receipt in the format year, month, day (YYYYMMDD) Sender (e.g. CAYA) Complete subject line Document ID (25 digits) Related articles In which file format does CAYA provide the digital letters? Where can I find the document ID? How can I cancel my forwarding order? How can I change my tariff?
