Customization to Default customer level address instead of party level primary addresses in iStore

Hello All,

Using TCA architecture we created one party - multiple accounts as our setup. In these accounts, only few select accounts have bill-to and all the others share this bill-to from one of the accounts.

When we create a new cart for any user of the account, it is picking the party level Identifying address as bill-to and creating one for this customer instead of using the customer bill-to.

Oracle does not have any notes on how to customize user hooks to achieve it.

Please respond if you have any info on this.

Thank you in advance..