How invoice copy works with dunning letter generation

Hi Gurus,

Below is our situation. I need advise.

Background:

1. We are using Bill To level

2. We define different AR transaction types to identify different hospital sites

3. All hospital sites share the same customers

4. We are using staged dunning plan

Condition:

1. Customer goes to different hospitals so one customer may receipt different invoices from different hospital sites, i.e different transaction types

2. We setup scoring engine for each transaction types via segmentation

3. We setup dunning plan for each transaction types

4. We create dunning letter  for each transaction types

Test Result

1. The Bill To score changes when I run different scoring engine for each transaction types