Hello, jokaru,
your equation looks a bit strange.
What is the
if(a_SQ001=='',"" part for?
And what kind of question are you using?
Looks like a multiple short text because you test against a "," and against a text "A7".
And where do you display this message?
You put it into the validation tip, don't you.
Better to put it into the question text.
Here an example for a single punch question:
Maybe like {if(!is_empty(Q1) AND Q1!=1,"<em>Please reconsider your answer</em>","")}
Furthermore you can style the text by some more css.
Like:
{if(!is_empty(Q1) AND Q1!=1,"<span style='color:red;font-style:italic;font-size:14pt;border:1px solid #FFFF00'>Please reconsider your answer</span>","")}
Best regards
Joffm