Predict Payment Batch Amount

Hi,

This company currently determines a payment batch amount by building a payment batch and running the Preliminary Payment Register.  Often the payment batch is then cancelled.  They are having some issues with that process.  I am wondering if there is a better way to determine a cash outlay for a payment batch than building payment batches and then canceling them. I am looking into the Invoice Aging Report (where we can define Aging Periods as desired).  But I did not yet see any other payment batch forecasting reports - short of building a payment batch.  Just wondering if anyone had