QP Attribute: Verify if customer is on a list. Customer can be on multiple lists

Hello,

My customer is on Oracle EBS 12.1

We need an Advanced Pricing Attribute to qualify a modifier if the Bill-to is on a list. These lists are defined with a custom screen. The Bill-to's can be on multiple lists.

We wanted to do:
- create a pricing package with input the bill-to customer.  Package returns the list(s) on which the bill-to is defined.
- In the setup of the qualifier put something like: List = 'List to verify'.

That works as long as the bill-to's are only defined on one list, but we have issues to make it work when the bill-to is on more than one list.