server/AyaNova/biz/FormCustomBiz.cs

@@ -217,6 +217,13 @@ namespace AyaNova.Biz
                                     AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "Template", $"Template array item {i}, \"hide\" property value of \"{fieldHideValue}\" is not valid, this field is core and cannot be hidden");
                             }
 
+                            //validate if it's a custom field that it has a type specified
+                             if (MasterFormField.Custom && formFieldItem["type"]==null){
+                                    AddError(ApiErrorCode.VALIDATION_INVALID_VALUE, "Template", $"Template array item {i}, \"type\" property value is MISSING for custom filed, Custom fields MUST have types specified");
+                             }
+                             
+                                
+
                             if (formFieldItem["type"] != null)
                             {
                                 if (!MasterFormField.Custom)