Unable to update Supplier catalogue content without wiping existing content

Dear All,

We are have wnat to be able to update catalogue prices against items as the requirement arrises. We tried doing that and noticed that existing Supplier catalogue content was wiped out (deleted). The only content that exist now is the utem that we loaded in the CSV file!.

We have implemented CCM 2.0.

How can load updates with our wiping/deleting exiting supplier content.

Thanks,

Sheena