Payment Gateway processing Fee
I want that whmcs should have an option where we can add a % amount of total invoice amount + any fixed amount.
For example paypal takes : Selling is 4.4% + $0.30 USD per sale.
and some gate takes a fix % amount of total sale.
I have seen some 2 - 3 addon for this but no one is reliable as all developed by 3rd party. and some are paid.
So i request from WHMCS developers kindly add this feature in next updates.