Customize parameter in SQL report

Question

I'm testing some possibilities in SAP B1 and B1UP.
I have this code behind an added button on the Item Master Data window:
select t0.itemcode,t0.itmsgrpcod as ItemGroup
from dbo.oitm t0
where t0.itmsgrpcod = [%0]
Sorry, the variable should be between [ ] but it is automatically converted to a link here.
The pop-up window for the user input asks a value for "Variable 0".
Can this prompt be customized as well as the text in the pop-up's title bar?
Something else that would come handy: Can it be made to show a selection box with the available choices for ItmsGrpCod?
Thanks for any help.

Answer 1

Hey Daniel!
I've tried your solution in the SAP query designer. It doesn't work for me.
This works fine:
declare @ItGrp smallint
set @ItGrp = 199
select t0.ItemCode, t0.itmsgrpcod as ItemGroup
from dbo.oitm t0
where t0.itmsgrpcod = @ItGrp
When I replace 199 by
'[%0]'
then I get no pop-up window for the parameter and errors (in the red bar at the bottom):
1) First time when loading the qry: Document (RDOC)
2) Then repeatedly on the Execute button:
     u2022 Service Contracts (OCTR)           or
     u2022 User-Defined Values (CSHS)
Very strange behaviour.
Something wrong with our SAP installation?