change individual users payment capture date
Currently there is no option for this.
All customers credit cards or PayPal agreements are charged on the specific date that is set in the automation section. While this works for most customers others request that we charge their credit cards on the due dates. However we can not do this in WHMCS currently.
The only thing we could do right now is adjust their due dates however we would rather be able to keep the same due date and charge their invoices on the date due.