Opening Balance account in customer record

We were using NetSuite for our Canadian subsidiary. Recently we have implemented a new subsidiary for the US. The Accounts Receivable GL account was then changed to apply only to the Canadian subsidiary and a new A/R account was created for the US subsidiary. The default A/R account preference was altered to blank from the previous Canadian AR account.

When creating a new customer for the US subsidiary, the default opening balance account populated is the Canadian AR account, although the same account is not applied to the US subsidiary. Additionally, the opening balance account list in the customer record displays all A/R accounts irrespective of subsidiary restrictions. There are also no transactions posted yet for the US subsidiary. Also, if we give an amount for opening balance for US customer with opening balance account as Canadian AR account, the system will throw an error.