Regarding claim creation as a follow up document for service call

Hi friends,

We have process like through dealer service call we can create claim call as a followup, but here the thing is that for suppose service call has got 1 line item of 2 quantity I should suppose to create 2 claims with each of 1 qty. or I should suppose to create one claim with 2 qty. But in present scenario I can create multiple claims, which should not suppose to happen. At present it is giving prompt with all the items and qty.details when I click create followup option. Is there any way to solve this like first time if I create one claim with 1 qty, next time in prompt it should display item with remaining qty. i.e. 1 only. Kindly clarify me.

Note: Through web we are using this process to create claim.

Regards,

Steve.