Click the Create New... button in the upper left corner and select the Case option.
It's also possible to import several cases at once from a .csv file clicking the button next to the Create New...
button and selecting the Import cases
option from the drop-down list. This is done the same way as the Contact import
You will be presented with the Create new case form. Fill in the fields you need: enter a Title for your case, add the case Participants - person or company - from your customer database.
To define your case and facilite the further search, add some tags clicking the Add tag link and selecting one of the available tags or creating a new one.
If you wish to restrict the access to the created case check the Restrict access box and add users you wish to grant the access to. Check the Notify box if you wish to inform the selected users about the created case.
Finally, click the Save button at the bottom.
The created case will be added to the Cases list.