I am using feeds module in order to import node from csv file, The mapping equation is
and the updating criteria set to
and my csv file contain this
guid,field_type,field_model,field_cost,
1,type1,model1,cost300,
2,type1,model2,cost300,
3,type1,model3,cost300,
4,type1,model4,cost400,
5,type1,model5,cost5,
6,type6,model6,cost6,
7,type7,model7,cost7,
8,type8,model8,cost8,
9,type9,model9,cost9,
10,type10,model10,cost10,
my problem is every time i import csv file the recorded added to my node (not update or replace), where is the problem?