Hi, We want to use billing agreement with resp api and we are able to successfully do it on sandbox. Now we have requirement of discount on first month, so if the have an agreement of 100$ for every month and when user applies some referral coupon, he will get 10$ discount on 1st month .i.e he should be charge 90$ on 1st month and 100$ going forward in the agreement period. I couldn't see any option other than setup fee, but this can only be used for additional fee, i.e to increase the plan amount but not some thing less.
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