How to add tip on credit card at checkout?

[nickny]

Hi all,

I'm using prestashop for a restaurant. They want for customers to be able to add tip to the credit card after they click the checkout button. Is that possible? How? Thanks so much

[MrBaseball34]

Who's the payment processor? It would be who to contact on how to do this, first, then communicate with us how they want it.

[nickny]

I'm using the authorize.net payment module for VISA and Mastercard. But not sure why that is important, as I would like for the tip to show as a fill in the box type of thing, so at the final stage, before they press process payment, they can enter it if they wish.. Thanks for your help.

[MrBaseball34]

First, you have to make sure that you can send it to them as a tip.
Some payment processors require the tip to be accounted separately.
You can do that with Google Checkout.
If all you want to do is add them up, that isn't very complicated. I
'll see if I can work something up.

[nickny]

Thank you so much.
I would think that they payment processors just get a final amount, and don't care to differentiate it for e.g. a $10 burger and a $2 tip.
But thanks for helping me out on this one.

[MrBaseball34]

Can you PM me a copy of your shopping-cart.tpl file from your themes directory?
How heavily have you modified the order process?

[MrBaseball34]

So, were you wanting more help on this or not?

[nickny]

Sure.. If you can I would like at the end when people have their total, to add a tip free text (or something that automatically calculates for e.g 18%). Thanks so much.

[MrBaseball34]

Then, please see post # 5 above.

[nickny]

I though I pm'd you. In any case I haven't modified anything. It's all the default stuff... Thanks for all your help.

[MrBaseball34]

OK, I'll see what I can come up with, it may take a few days.

[nickny]

Appreciate all your help.