# Get Promotion Coupon By Reference ID Get promotion coupon details by reference ID. Requires the "VIEW" role in the "Promotion" group. Endpoint: GET /api/v3/PromotionCoupon/ByReferenceID Version: 3.1.0 Security: OAuth2_clientCredentials ## Query parameters: - `ReferenceID` (string) Invoice ID ## Response 200 fields (application/json): - `Code` (string) Coupon Code Example: "889977" - `Limit` (integer) Coupon Limit Example: 5 - `Balance` (integer) Coupon Balance Example: 5 - `Discount` (integer) Coupon Discount Example: 99 - `Created` (string) Coupon Created Time Example: "2019-12-17T14:58:15.447" - `StartDate` (string) Coupon Start Time Example: "2019-12-01T00:00:00" - `ExpiryDate` (string) Coupon Expired Time Example: "2019-12-19T00:00:00" - `Type` (string) Coupon Type Example: "Discount" - `Description` (string) Coupon Description Example: "Discount percentage 99%" - `CustomerCode` (string) The customer code that assigned to the coupon Example: "DP-001"