Union in TwoCte

WITH CTE  ( DATA,CODPROD,DESCPROD,UNID,QTDTOTALVENDIDA )
  AS (
       SELECT
        B.EA01DATA,
        B.EA03CODEPROD,
        P.CAD_NOMEDOPROD,
        B.EA07UNID,
        SUM( B.EA05QTD )
        FROM ESTOQUEMOVIMENTOB B
        INNER JOIN CADPRODUTOS P ON ( P.CAD_CEAN13 =  B.EA03CODEPROD)
        WHERE B.EA01DATA BETWEEN :PDATEINI AND :PDATEFIM
        GROUP BY
        B.EA01DATA,
        B.EA03CODEPROD,
        P.CAD_NOMEDOPROD,
        B.EA07UNID
    ),
  CTE2( CODPROD,DESCPROD,UNID,QTDTOTALVENDIDA ) AS
  (
     SELECT CODPROD,
            DESCPROD,
            UNID,
            QTDTOTALVENDIDA
      FROM CTE C
  UNION ALL
  SELECT
   P.CAD_CEAN13,
   P.CAD_NOMEDOPROD,
   P.SAID_UNVENDA,
   CAST((0) AS NUMERIC(15,2))QTDTOTALVENDIDA
  FROM CADPRODUTOS P
  )
   SELECT  CODPROD,
           MAX(DESCPROD)DESCPROD,
           MAX(UNID)UNID,
           MAX(COALESCE(QTDTOTALVENDIDA,0))QTDTOTALVENDIDA
   FROM CTE2 CC
   GROUP BY CODPROD
   ORDER BY 4 DESC