Error while executing query in wizard

Question

Hi,
When I run the following query in SAP's Query Generator , I get the error 'Invalid column name 'GS09'
select DocNum,convert(varchar,T0.docdate,103) PostingDate, T1.seriesname, isnull(numatcard,'') 'Vendor Ref', CardName, sum(quantity) Qty, sum(p1.linetotal) Row_Total,  Discsum Discount, T0.Vatsum Tax, sum(isnull(p3.totalsumsy,00)) Freight , sum(isnull(p5.WTAmnt,0)) 'TDS Total',
T0.doctotalsy - T0.paidsys 'Net Amount' from opch T0 inner join pch1 p1 on T0.docentry = p1.docentry
left outer join pch3 p3 on T0.docentry = p3.docentry
left outer join pch5 p5 on T0.docentry = p5.Absentry
inner join nnm1 T1 on T0.series = T1.series and T1.objectcode = 18
where T1.seriesname = case when len([%0]) > 0 then [%0] else T1.seriesname end and T0.docdate >= case  when  len([%1]) > 0 then  [%1]  else  T0.docdate end and T0.docdate <= case  when  len([%2]) > 0 then  [%2]  else  T0.docdate end 
group by docnum, numatcard, cardname, T0.docdate, Discsum,T0.Vatsum,T1.seriesname, T0.doctotalsy - T0.paidsys
I am passing 'GS09' as my series parameter. when i remove the condition
T1.seriesname = case when len([%0]) > 0 then [%0] else T1.seriesname end
it works fine. 
anything wrong with this particular line? I am working on PL 44, 2005 B version.
regards,
Binita

Answer 1

Thanks for replying Vijay,
I have tried as you said but in my case, it does not give the parameter at all for seriesname to enter! if I change the code
('%2')
to
[%2]
then only it shows me it. I am re-writing my query:
select DocNum,convert(varchar,T0.docdate,103) PostingDate, T1.seriesname, isnull(numatcard,'') 'Vendor Ref', CardName, sum(quantity) Qty, sum(p1.linetotal) Row_Total,  Discsum Discount, T0.Vatsum Tax, sum(isnull(p3.totalsumsy,00)) Freight , sum(isnull(p5.WTAmnt,0)) 'TDS Total',
T0.doctotalsy - T0.paidsys 'Net Amount' from opch T0 inner join pch1 p1 on T0.docentry = p1.docentry
left outer join pch3 p3 on T0.docentry = p3.docentry
left outer join pch5 p5 on T0.docentry = p5.Absentry
inner join nnm1 T1 on T0.series = T1.series and T1.objectcode = 18
where T0.docdate >= case when len([%0]) > 0 then [%0] else T0.docdate end  and T0.docdate <= case when len([%1]) > 0 then [%1] else T0.docdate end 
and T1.seriesname = case when len('%2') > 0 then '%2' else T1.seriesname end
group by docnum, numatcard, cardname, T0.docdate, Discsum,T0.Vatsum,T1.seriesname, T0.doctotalsy - T0.paidsys
thanks,
Binita