If you need to upload files related to an order, go to the details page of the corresponding order and select the "Upload Attachment" tab. Then, choose the file type, and select the corresponding file to upload. After uploading, make sure to click the save button. As shown in Figure B2B Orders - Upload Files.
To download a related file, you can click on the file name to download it directly in the browser.
If an uploaded file is incorrect, you can click the delete button in the operation column and then click save to remove the file.