TOAD Datapoint 4.0 STRING Variable Problem with numerics

I am using TD automation and setting a variable (IDNoVar) that happens to be a number (00001234).  My export returns 0 records because TD is stripping these leading zeroes.  The variable is set to a STRING data type.  The export SQL is to Teradata and the where clause is trim(IDNo) = trim(:IDNoVar).  The IDNo column is Varchar(8).  When the automation executes TOAD sets this IDnoVar to '1234'.

Any ideas on how to solve this issue?

Thanks for your help.