Invoice upload option

Does anyone know how I can give a upload button to my vendors, so that they can upload invoices.

I have created a vendor management tool. Orders are listed on a page.
I want to give my vendors an option to upload invoices for these orders

Can anyone help.

I have achieved this with an attachment field in Airtable, mapped to Softr.io

Using an edit (action) button, a user can upload their file (invoice) to the attachement field.

Perhaps this will work for your use case too.