Some of clients as they have 50 to 300 branches, they required separate account statement with outlet name and number; which means we have to open new account for each branch individually. However, the main issue is that, when they make a payment, they make it from the HQ and its including more than one branch overdue invoices. On top of that, in order for them to clear the outstanding of some branches balances, they use many Credit Notes was issued for different branches to deduct from the total outstanding balance to issue the final payment.

SO, is it possible to merge the accounts under a parent account which could be the HQ in order to overcome this issue and cover our clients requirements at the same time?

As you can see it's very much difficult to key in one payment for many customers in ZOHO BOOKS at the same time can not apply CNs among number of customers.

https://zohofinance.uservoice.com/forums/283818-zoho-books/suggestions/42140374-customer-parent-account-or-sub-customer-account