What is Balance Forward in Individual Statement?

It is the summarized balance of A/R for that customer prior to the start date of your Statement

Thank you @MGBC Could you help me how to get that in SuiteScript or using Saved search please?

If you set the start date of your Statement to be NULL then it won't show up

I wanted to calculate it to make it similar statement pdf

You would have to get the Start Date the user selects when generating the statement, then find all transactions hitting A/R that have a duedate BEFORE that date and sum up the total amount remaining in A/R for those transactions

So calculate it reverse from today?