If I change the field_label to what is the purpose of this campaign and the field_name to what_is_the_purpose_of_this_campaign it does not work. However, if I change the field_label to whatisthepurposeofthiscampaign and the field_name to
whatisthepurposeofthiscampaign it does work. It seems that any spaces break the connection of the field_label and field_name