To send your invoice from ABOSS click on the mail button.
A pop up screen will appear where you can set up your mail. You can create your subject, add 'to', 'cc' and 'bcc' addresses, write your message and add attachments. You can select a contact from your contact list or add a new email address and press ENTER which will result in:
To add more attachments click on the '+' button at the bottom right. Now you can search and select files from your own database that you want to add to the mail. Attach the items to the email by clicking on 'attach to email'.
You can add a note to the email and send it.