How to inherit Accounting Rule from PTO order lines

Summary:

We have created a PTO kit with multiple child lines but the AR transaction has defaulted to 'immediate'

Content (please ensure you mask any confidential information):

We created a PTO Model kit with 3 child component lines - one line with deferred payment/account rule however the AR transaction processed as immediate inheriting the rule from the parent line.

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Code Snippet (add any code snippets that support your topic, if applicable):