Hello,
 
I have a question about the contact form on my website. When a message via the form is submitted, whether it is completed successfully or produces an error, it doesn’t make any difference in the data layer (google tag manager).
 
I'm attaching 2 screenshots, in which you can see the returned results from a wrongly filled in form and a correct one. In the data layer, both appear with similar information, so I cannot distinguish them somehow, in order to filter and define the successful conversion. Is there any way to mark the one from another and exclude it?

Thank you,
Magda