>My syntax is correct.
>
>>The correct syntax is
>>
>>

>>IF VARTYPE(m.SomeVariable) <> "U"
>>  * Variable exists
>>
>>IF VARTYPE(m.SomeObject) == "O"  && this part is useless AND NOT ISNULL(SomeObject)
>>  * SomeObject is an Object reference
>>...
>>

Sorry, it isn't

The variable name does not need quotes for vartype()

VARTYPE("SomeVariable") will always return 'C'