Posting in the Magento forums has been disabled pending the implementation of a new and improved forum solution which should better serve the community.
For new questions please post at magento.stackexchange.com, the community-run support site for the Magento community. We will be providing updates on the new forum solution soon. For questions or concerns please email firstname.lastname@example.org.
What do you want to do exactly? Giving discount to the grand total when the user selects a special shipping method? Or do you want to add discount to the shipping costs directly? When do you want to add the discount?
Hi, thanks for the help. Sorry for not being clear, I want to create a 50% discount coupon code and it will be applied only to shipping cost, not together with product. I tried using the shipping cart rule method but it cannot applied to just shipping cost alone.