Currently, there's an issue with the sync between Bill.com and Oracle NetSuite when the SuiteTax feature is enabled.

The current version of SuiteTax requires data from Bill.com during a sync that isn't available, causing the sync to fail. As a result, enabling SuiteTax prevents Bill.com from completing a sync with Oracle NetSuite because SuiteTax isn't currently supported by Bill.com.

SuiteTax is a new feature in Oracle NetSuite ERP that provides the calculation and storage of sale tax charged in transactions. This feature is available to Oracle NetSuite customers upon request. Note that once a Oracle NetSuite account is upgraded from the legacy tax calculation feature to SuiteTax, it cannot be reversed.

We don't have a timeframe for enabling the Bill.com sync to work with both Oracle NetSuite and SuiteTax simultaneously. So, it's important for you to understand that enabling SuiteTax will prevent the sync with Bill.com from working.