Input parameters and validation
          The TFORM_GENERATE_VALID_COMBINATIONS program considers these input parameters:
         
         - SOURCE
 - A source value from the SCV tables. This parameter generates valid combinations for a subset of the data in the SCV tables.
 - VALID_COMBINATION_NAME
 - 
           The name of the valid combination definition to be used from SCV.
           Note: If this parameter is specified, the value must match with a valid combination definition in SCV. Else, this error message is displayed:
The specified <VALID_COMBINATION_NAME> must be a valid Valid Combination definition in SCV.