Cancel CollectionCopy Pageput https://api.intersoftsapient.net/v4/collections/rm/{shipmentId}/cancelCancel a Royal Mail collection request for an existing shipment.Path ParamsshipmentIdstringrequiredA unique identifier (shipmentId) or tracking number returned in the Create shipment response. This ID is used to specify the shipment for which the collection is being cancelled.Responses 200The collection has been cancelled successfully. 401Unauthorized 403Forbidden 500Internal Server ErrorUpdated 12 days ago Book CollectionGet Collections TimeslotsDid this page help you?YesNo