Not all records exist in BILLING_SCHEDULE table (ODBC) ?

Hello friends,

I do a lot of SQL queries via ODBC.

I have stumbled upon something strange:

I have several Sales Orders that In NetSuite UI I do see their billing schedule, but I don't find these records in BILLING_SCHEDULE table.

Attached is an example.

I probably miss something.

My theory is that in the case of a simple billing schedule consisting of one billing step, it will be recorded somewhere else, and not in the BILLING_SCHEDULE table...

If so - where? and in which cases?

Thanks!

Michael