SQL - Orden de trabajo dentro de un rango de fechas

ALTER PROCEDURE [dbo].[REQUISICION Y DEV DE OT]

(/*--@orden nvarchar(10),---*/@finicio date,@ffinal date)

AS

BEGIN

SELECT

TIPO = 'ENTREGA A TALLER',

T2.CODE  AS ORDEN,

T1.DocNum AS N_DOC,

T1.DocDate AS FECHA,

T0.ItemCode AS CODIGO,

T0.Dscription AS DESCRIPCION,

T0.Quantity AS CANTIDAD,

T0.Price AS PRECIO_U,

T0.LineTotal AS TOTAL

FROM IGE1 T0

JOIN OIGE T1 ON T1.DOCENTRY = T0.DOCENTRY

JOIN  [@ORDENESPROCESO] T2 ON T2.Code = T1.DOCENTRY

WHERE  T1.DocDate BETWEEN @finicio AND @ffinal

UNION ALL

SELECT

TIPO = 'DEVOLUCION A BODEGA',

T2.CODE AS ORDEN_TRA,

T1.DocNum AS N_DOC,

T1.DocDate AS FECHA,

T0.ItemCode AS CODIGO,

T0.Dscription AS DESCRIPCION,

(T0.Quantity*-1) AS CANTIDAD,

(T0.Price*-1) AS PRECIO_U,

(T0.LineTotal*-1)AS TOTAL

FROM IGN1 T0

JOIN OIGN T1 ON T1.DOCENTRY = T0.DOCENTRY

JOIN  [@ORDENESPROCESO] T2 ON T2.Code = T1.DOCENTRY

WHERE  T1.DocDate BETWEEN @finicio AND @ffinal

END