Hi there,

so i have for example :

prodhiernr artnr cost
1110050 123456 50
1110050 123544 60
1110050 234343 70
1110051 534222 90
1110051 353533 100
1110051 124643 80

When de prodhiernr changes to 1110051 i want to sum the total cost for prodhiernr 1110050 and later on for the other products also (the list is very long).. Does anyone have a clue how to do this?

Thanks in advance