Amount no longer required on DraftOrderAppliedDiscountInput
API
Effective April 17, 2020
The amount field is no longer a required field on DraftOrderAppliedDiscountInput. If omitted, then the amount is automatically calculated based on the value and valueType. This avoids unnecessary calculations by API clients that can otherwise be done by Shopify.
For more information, refer to DraftOrderAppliedDiscountInput in our GraphQL reference.