Field help (CLBPCC1) 

This field displays the cost type against which this employee's labor time was recorded.

 Project cost types define types of cost that can affect a project such as labor costs. This employee cost type is defined on this employee's user record. If the user cost type is blank, the cost type is defined on the project, or if the user cost type is blank and the project cost type is blank, the cost type is defined in parameter PCCCOD - Default labor cost type (chapter TC, group PJM).