When you receive an email from your supplier, it can be useful to attach it to that supplier's page so that their invoices are easier to locate and manage. You have the ability to 'drag and drop' invoices straight onto your suppliers' individual pages, it should only take a few seconds to upload.
You should ensure the invoice is correct and associated with your chosen supplier otherwise, an error message will occur and you won't be able to attach the file. Once uploaded, the document will be stored under the 'Attached files' tab of your supplier's profile.
This action can also be done to upload invoices to the 'Costs' tab under a specific job. Drag and drop the invoice and then select the correct supplier from the search.