What's the issue you're facing?
I would like to know how many documents I can upload the the Documents tab or include in my invitations.
Solution
You can upload as many documents as you like provided that the document(s) do not exceed the limits stated below.
The size limit for documents “included in invite email” is 5MB. This cannot be adjusted.
Default Single Document size upload is 100MB.
Default space available for all documents is 150MB.