Make sure the class meets all the filter criteria you are using in your code, and that the Class Summary tab has "Display on Website=Yes", and that the class has openings, etc. Make sure your target parameter value names in the code match exactly to those in your database. Make sure the Start and End times are correct format. Make sure the value names don't contain special characters. Still having trouble with a code? Contact the Integration Specialist from the Integration Assistance page.