Hi Kareem,
Profitability segment is created for the Internal Order and is created at run-time. You will first have to check if the Service Confirmation is linked to any Contract. If yes, open the internal order of the contract in KO03 in R/3 side. Once in the contract, go into Setllement rule and double click on first line to get into a new screen. There you will see the Prof Segment button. Open that and there is your profitability segment of the contract. If Confirmation is not linked to Contract, it will post against the Internal order of the Repair Order/Service Order whatever the previous document may be. You can open their Internal order in a similar way.
Ideally, the values in the prof segment should match with the values of the contract (moestly the mismatch is between customer and Ship-To). You need to compare the internal Order Profitability Segment values with the Service Contract values. That should resolve the issue.
Thanks
Arpit Agrawal