Your SoftSync workspace is the space to centralize and activate all your contacts. You can work in your workspace alone or share it with your teammates.
Most users only have 1 workspace to centralize everything. But you can create as many workspaces as you want (if you have separate projects or companies for instance).
You can delete your workspace from your Settings > Workspace details. You can only delete the workspace, if you are the owner. Otherwise, you can leave the workspace.