This hint can be the sign of a simple oversight, a variable you meant to use but finally did not need, as is the case in the example below.
nNewDate // variable is never used
if WeekdayOf(n_TokenDate) <> 7
sRESULT = 'Monday to Saturday'
sRESULT = 'Sunday'
However this hint can also indicate that there are loose ends in your macro. For example you started to add a feature to your macro, added a variable and then were distracted and forgot to write the code that was meant to use this variable.