Hi Dolly,
1) I understand that DSO3 do not have process key as a key field. But the data will not get added as 100 + 150 = 250 , instead it will be 100+50 = 150. The reason being in the change log it will have only 100 +150 = 50. So only 50 will move from DSO2 to DSO3. ( I have run the cycle in my system).
2) I have shown how the effect will be when the records flow in each of the DSO. ( In DSO3 there is a correction to be made).
3) You need to have summation otherwise when GR data comes in PO value will be 0 and therefore your PO value will be overwritten as 0
Please try out and let me know
Regards
Gajesh