To cascade columns, make sure that the columns are not required! The relationship list is the list that is one level above the current list. GT columns are the actual field names whereas the non-GT columns are actually the display names on the form. Enjoy!
//code.jquery.com/jquery-1.11.3.min.js //cdnjs.cloudflare.com/ajax/libs/jquery.SPServices/2014.02/jquery.SPServices.min.js var myJQ = jQuery.noConflict(true); myJQ(document).ready(function(){ // you would put your cascading dropdowns in here, like: myJQ().SPServices.SPCascadeDropdowns({ relationshipList:"Subcategories", relationshipListParentColumn:"GTCategory", relationshipListChildColumn:"GTSubcategory", parentColumn:"Category", childColumn:"Subcategory", debug:true }); });