Cashflow Planner/Forecasting

Hello, 

My client wants to use a cashflow/forecasting tool and I know QB is withdrawing theirs.  My client has certain suppliers that are paid by BAC's and others that are paid by credit card. QB would just put all due invoices into the planner and the bank account, this would mean amending them or even deleting.

For instance if AA Ltd has a due date of 31st March its picked up in the cashflow for that date from the bank, but we always pay them via credit card and equally receive another 30 days 'credit'.

Is there an app that we can link to QB that will show all the bank / credit cards and allow us to allocate a supplier to that payment method and then look at each one independently?

Thank you in advance