Okay, so I recently switched to CDG and have installed Quantum Gateway. I have a selection to use MaxMind in WHMCS and Quantum processing settings. Do I choose to use MaxMind in WHMCS, Quantum or both? Will having it set in both cause issues (like cancel each other out) or is it overkill or does it matter?
I believe it would just do two MaxMind checks instead. One when the order is placed, and then again when they use the gateway to make the payment. You may want to contact WHMCS staff to verify, though.