Hi, I was able to encounter some error for the pivot table. It is given that a certain Door No., for example ATC0005, has unequal value of Date Mobilized and Date Mobilized hence it should be deployed. But when we go row #8 to put a date value on cell D8 or the Date Demobilized, Date Mob. and Date Demob. should have equal value, but you will notice on the pivot table on the right the Count of Date Demobilized for ATC0005 remains 6, however we should expect that it will return 7.