To know how to use all the functionalities of the Supplier portal, have a look at this article: http://help.lsp.expert/en/articles/3340222-getting-started-with-the-supplier-portal.
There are three ways to share files with a supplier:
1) You can upload the files to be shared in the Files tab of the job, and then click on the three dots at the end of the line of the uploaded file and select "Share with all suppliers".
2) You can upload the files to be shared in the Files tab of the job, and then edit the "Files shared with the supplier" panel in the outsourcing page of the job and click on Share next to the files.
3) You can click on Edit in the "Files shared with the supplier" panel in the outsourcing page of the job and upload the files from there. The files uploaded there will also be automatically uploaded in the Files tab of the job. The advantage is that the files uploaded from here will be automatically marked as shared with the supplier.
Whatever the method, the files can be uploaded from your computer, Dropbox, OneDrive or Google Drive. You can select all the files you wish to add and upload them at once.
To unshare a file, you have two options:
1) In the Files tab of the job, if the file is share with all your suppliers, you can click on the three dots and then on Remove sharing with all suppliers.
2) In the "Files shared with the supplier" panel in the outsourcing page of the job, you can click on Unshare next to each file.
