Attachments facility is given only for the Email, Appointment and Custom Activities.
To add an attachment for the activity, you will find Attachment By clicking on + icon, Add Attachment popup will appear.
Now choose the file to be attached as attachment and click on ‘Attach’ button.
On clicking Attach button, attachment will be shown in “Create Activity” dialog box along with delete icon. Clicking on ‘Delete’ icon will remove that activity.
Thereafter click on Create button to complete activity creation with attachment.
‘Attachment’ icon will be displayed on the activities in the calendar for which the attachments were added.