For batch determination we have two characteristics 1) Sort number 2)Mfg Date both are defined as ascending.
The problem is 'Sort Number' is optional characteristic so for many incidents the value for this characteristic in batch use to be blank.
When executing batch determination system takes the batches for which 'Sort Number' is blank at top. Actually we want the batches to appear in ascending order with 'Sort number' value and if 'Sort Number is blank' then those batches should appear at end. How to fix this requirement. Please suggest.