need a little more information
you created a parameter on cust name? and then created a calculation or filter like if cust name = parameter value then something ??
and you get nothing when there is no record matching cust name???
the issue is not with the parameter it is with the data - there is no record that matches the filtered data - not a null value in the data set actually no data''
the issue can be resolved with padding the data - see many references to scaffolding data -
or depending on the data structure you can add something like ifnull( Lookup(attr(custname),0),0) IF the data structure and data will allow it - if you attach your twbx a more specific response can be developed
If this posts assists in resolving the question, please mark it helpful or as the 'correct answer' if it resolves the question. This will help other users find the same answer/resolution. Thank you.
Thank you for your reply. Actually, I think I like it this way. But if the end users see any issue with it, I will revisit this thread. I truly appreciate the quick response. Thanks
OK if my response help yu please mark it correct or helpful to close the thread