Sometimes I forget to list the variables names in the AMPscript block and they still work just fine. Can I go and not list any of them? Is there anything that can go wrong if I don't list any?
I just wanna make sure I'm not missing something here. Thanks.
e.g.
%%[
Var @variable1, @variable2
Set @variable1 = "something"
Set @variable2 = "something else"
]%%
vs.
%%[
Set @variable1 = "something"
Set @variable2 = "something else"
]%%
It's a hit and miss. In might work in this situation but imagine having a 200 line Ampscript block and trying to debug it? You don't want to complicate things by having to check for this too.
Best practice is to declare them.
UPDATE:
As Gortington pointed out, defining a variable helps with handling empty or null values, reducing syntax errors
I find not declaring is reliable when working with simple IF statements and marketing content otherwise, I agree with above, though, consistency is required as best practive.
