In the case of consolidate invoice with multiple tax rates, if the total tax adjustment amount is zero the customer code of conslidated invoice is not used for the adjustment journal.

Case of consolidate invoice tax adjustment:   

tax rate 10% adjustment amount +10 yen

tax rate 8% adjustment amount -10 yen  

-> the total adjustment amount is zero yen

Current created journal is :

Dr) Tax adjustment 8% 10 yen Cr) Tax adjustment 10% 10 yen

In this case, customer of consolidated invoice is not set in the Voucher transactions.

Created journal that should be posted is :

Dr) Tax adjustment 8% 10 yen Cr) Accounts Receivable 10yen

Dr) Accounts Receivable 10yen Cr) Tax adjustment 10% 10 yen

In this case, customer of consolidated invoice is set in the each Voucher transactions.