Update Couponpatch https://a.klaviyo.com/api/coupons/{id}Rate limits:Burst: 3/sSteady: 60/m Scopes: coupons:writePath ParamsidstringrequiredThe internal id of a Coupon is equivalent to its external id stored within an integration.Body Paramsdataobjectrequireddata objectHeadersrevisionstringrequiredDefaults to 2026-01-15API endpoint revision (format: YYYY-MM-DD[.suffix])Responses 200Success 4XXClient Error 5XXServer ErrorUpdated over 1 year ago