Custom fields are your own fields that you can use to expand the options for recording additional information for Clients, Contacts, Projects/Cases and Users.
Custom fields can be of different types, such as text, selection, date, or for uploading files (adding attachments).
Custom fields are set in "My name" -> Administration
then go to the Custom fields tab. Custom fields are created by clicking "+Add" .
Here you fill in the "Name", and the "Subject" (Client, Contact, Project/List or User) for which the Custom field will be displayed
For "Type" you can choose from the following options
One line text input (free text field for single line text)
Multiple line text input (free field for writing multi-line text)
Dropdown list (option to create a custom list to populate the field)
Dropdown list -multiple values ( custom list fild with multiple item selection)
Yes|No (select Yes/No)
Date (date selection field)
File upload (field with the option to add your own files as attachments)
If you select " Subject" Project/Case, you also have the option to select the "Allowed Project/Case Types" for which this field will be displayed. If you don't select it, it will be displayed for all "Projects/Cases"