Hello to all great affiliate network people, as a new advertiser in CJ, I want to ask for your suggestions about coupon codes.

Here are my couple questions:

1, what's the common practise to promote/deliver coupon codes?

2, What publishers like and don't like about coupon codes?

3, What's the best way to let publishers know new coupons released?

I have promoted my coupon codes through internal newsletters in CJ. Even though the email open rate is fairly good, coupon codes were not picked up quickly by publishers. I am wondering if coupon feeds will be helpful? How can I set up coupon feeds in CJ?

I know my questions are long. Any suggestions or inputs will be greatly appreciated! Thanks!