Create Coupons codes

I have version 2.2.4. I need to create one hundred promotional codes that can only be used one time, only valid for five different products. Someone can help me?

do you need to have different codes? or would something like this work?


I need diferent codes and just can be used in 5 diferente products.

Thanks in advance.

It makes a difference.

Same customer can clear cookies and purchase again, or, use their mobile phone (different IP via 3G) to purchase again with promotional code.

Having unique promo codes makes a biiiig difference.

One thing i've never understood why you couldn't create random codes with a prefix / suffix!

There must be an add-on available somewhere!