Trying to calculate salary for an employee working at more thatn one position of employment, check Multiple Positions in Salary Calculation in Administration Panel. Now lines appear in salary calculation for each position respectively (End and Start of period in calculation). Here we speak of employee ALAN FORD having a position at Department 1 and another one at Administration. The DMID field where you can enter individual earnings types was added to salary calculation. The field contains position of employee in Employee Files. If value 0 is set in DMID, earnings types are not linked to any position. Thus here you cannot use certain Del variables. On the other hand, wherever other values are set in DMID they represent employee's position. Lines containing DMID of other positions are displayed in italic and cannot be changed. Here you can observe line 72, DMID=2 and ET=RDC.