diff --git a/devdocs/todo.txt b/devdocs/todo.txt
index 163b9e73..2641676b 100644
--- a/devdocs/todo.txt
+++ b/devdocs/todo.txt
@@ -1,6 +1,6 @@
 # SERVER TODO (J.F.C. - Just fucking code it already)
 
-Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOiIxNTQ0NTU5NzAwIiwiZXhwIjoiMTU0NzE1MTcwMCIsImlzcyI6ImF5YW5vdmEuY29tIiwiaWQiOiIxIiwiYXlhbm92YS9yb2xlcyI6IjMyNzY3In0.fMq_8Dvia63rzN_U2zjczPvUNM40OEAeI4VOeV6ulGw
+Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOiIxNTQ3NTgwMzg2IiwiZXhwIjoiMTU1MDE3MjM4NiIsImlzcyI6ImF5YW5vdmEuY29tIiwiaWQiOiIxIiwiYXlhbm92YS9yb2xlcyI6IjMyNzY3In0.duYSuTC2v9dCD7POPTvRNB2B4tGCkNQ1UDkgaSrNSYo
 
 
 ## IMMEDIATE ITEMS
diff --git a/server/AyaNova/Controllers/FormCustomController.cs b/server/AyaNova/Controllers/FormCustomController.cs
index 9afdc792..2ba54473 100644
--- a/server/AyaNova/Controllers/FormCustomController.cs
+++ b/server/AyaNova/Controllers/FormCustomController.cs
@@ -125,6 +125,53 @@ namespace AyaNova.Api.Controllers
             }
         }
 
+        /// <summary>
+        /// Get available types allowed for Custom fields
+        /// Used to build UI for customizing a form
+        /// 
+        /// Required roles:
+        ///     BizAdminFull only has rights to customize forms
+        /// 
+        /// </summary>      
+        /// <returns>A list of type string values valid for custom fields</returns>
+        [HttpGet("AvailableCustomTypes")]
+        public ActionResult GetAvailableCustomTypes()
+        {
+            if (serverState.IsClosed)
+                return StatusCode(503, new ApiErrorResponse(ApiErrorCode.API_CLOSED, null, serverState.Reason));
+
+            if (!Authorized.IsAuthorizedToReadFullRecord(HttpContext.Items, AyaType.FormCustom))
+                return StatusCode(401, new ApiNotAuthorizedResponse());
+
+            if (!ModelState.IsValid)
+                return BadRequest(new ApiErrorResponse(ModelState));
+            return Ok(new ApiOkResponse(AyDataType.ValidCustomFieldTypes));
+        }
+
+
+          /// <summary>
+        /// Get a list of all customizable form keys
+        /// Used to build UI for customizing a form
+        /// 
+        /// Required roles:
+        ///     BizAdminFull only has rights to customize forms
+        /// 
+        /// </summary>      
+        /// <returns>A list of string formKey values valid for customization</returns>
+        [HttpGet("AvailableCustomizableFormKeys")]
+        public ActionResult GetAvailableCustomizableFormKeys()
+        {
+            if (serverState.IsClosed)
+                return StatusCode(503, new ApiErrorResponse(ApiErrorCode.API_CLOSED, null, serverState.Reason));
+
+            if (!Authorized.IsAuthorizedToReadFullRecord(HttpContext.Items, AyaType.FormCustom))
+                return StatusCode(401, new ApiNotAuthorizedResponse());
+
+            if (!ModelState.IsValid)
+                return BadRequest(new ApiErrorResponse(ModelState));
+            return Ok(new ApiOkResponse(FormAvailableFields.AvailableFormKeys));
+        }
+
 
 
 
diff --git a/server/AyaNova/biz/AyDataType.cs b/server/AyaNova/biz/AyDataType.cs
index e1225030..d075d6e7 100644
--- a/server/AyaNova/biz/AyDataType.cs
+++ b/server/AyaNova/biz/AyDataType.cs
@@ -1,3 +1,5 @@
+using System.Collections.Generic;
+
 namespace AyaNova.Biz
 {
     public static class AyDataType
@@ -10,5 +12,19 @@ namespace AyaNova.Biz
         public const string Tags = "tags";
         public const string Enum = "enum";//enums are just integers in the db so the sql code handles it like an int, but the client needs to know it's an enum
 
+        public static List<string> ValidCustomFieldTypes
+        {
+            get
+            {
+                var ret = new List<string>();
+                ret.Add(AyDataType.Date);
+                ret.Add(AyDataType.Text);
+                ret.Add(AyDataType.Integer);
+                ret.Add(AyDataType.Bool);
+                ret.Add(AyDataType.Decimal);
+                return ret;
+            }
+        }
+
     }
 }
diff --git a/server/AyaNova/biz/FormCustomBiz.cs b/server/AyaNova/biz/FormCustomBiz.cs
index 90d3b4c1..164d46b0 100644
--- a/server/AyaNova/biz/FormCustomBiz.cs
+++ b/server/AyaNova/biz/FormCustomBiz.cs
@@ -149,16 +149,23 @@ namespace AyaNova.Biz
             // if (inObj.OwnerId != UserId)
             //     AddError(ValidationErrorType.InvalidValue, "OwnerId", "OwnerId must be current user Id");
 
-            //FormKey required
+            //FormKey required and must be valid
             if (string.IsNullOrWhiteSpace(inObj.FormKey))
                 AddError(ValidationErrorType.RequiredPropertyEmpty, "FormKey");
+            else
+            {
+                if (!FormAvailableFields.IsValidFormKey(inObj.FormKey))
+                {
+                    AddError(ValidationErrorType.InvalidValue, "FormKey");
+                }
+            }
 
             //FormKey must be less than 255 characters
             if (inObj.FormKey.Length > 255)
                 AddError(ValidationErrorType.LengthExceeded, "FormKey", "255 max");
 
             //If name is otherwise OK, check that name is unique
-            if (!PropertyHasErrors("FormKey"))
+            if (!PropertyHasErrors("FormKey") && isNew)
             {
                 //Use Any command is efficient way to check existance, it doesn't return the record, just a true or false
                 if (ct.FormCustom.Any(m => m.FormKey == inObj.FormKey && m.Id != inObj.Id))
@@ -169,9 +176,12 @@ namespace AyaNova.Biz
 
 
 
+
             //Template json must parse
-            if (!string.IsNullOrWhiteSpace(inObj.Template))
+            if ((!PropertyHasErrors("FormKey") && !string.IsNullOrWhiteSpace(inObj.Template)))
             {
+                var ValidCustomFieldTypes = AyDataType.ValidCustomFieldTypes;
+                var ValidFormFields = FormAvailableFields.FormFields(inObj.FormKey);
                 try
                 {
                     var v = JArray.Parse(inObj.Template);
@@ -182,7 +192,7 @@ namespace AyaNova.Biz
                      */
 
                     //Validate the following:
-                    //FormKey is valid value
+
                     //All fields specified are valid values
                     //Field is allowed to be hidden if hidden
                     //Type is one of the valid types:
@@ -194,59 +204,90 @@ namespace AyaNova.Biz
                     public const string Decimal = "decimal";
                      */
 
-                    TODO: validate the json
+                    //TODO: validate the json
                     /*                    
                      - JSON FRAGMENT holds items that differ from stock, no "core" fields allowed           
                 - FieldKey
                 - Hide
                 - Required
                 - Type (checkbox, date, date time, decimal, number, picklist(FUTURE), and text)
+
+                {[
+  {
+    "fld": "WidgetCustom1",
+    "hide": false,
+    "required": true,
+    "type": "date"
+  },
+  {
+    "fld": "WidgetCustom2",
+    "hide": true,
+    "required": false,
+    "type": "bool"
+  }
+]}
                      */
-                    // for (int i = 0; i < v.Count; i++)
-                    // {
-                    //     var filterItem = v[i];
-                    //     if (filterItem["fld"] == null)
-                    //         AddError(ValidationErrorType.RequiredPropertyEmpty, "Filter", $"Filter array item {i}, object is missing required \"fld\" property ");
-                    //     else
-                    //     {
-                    //         var fld = filterItem["fld"].Value<string>();
-                    //         if (string.IsNullOrWhiteSpace(fld))
-                    //             AddError(ValidationErrorType.RequiredPropertyEmpty, "Filter", $"Filter array item {i}, \"fld\" property is empty and required");
 
-                    //         //validate the field name if we can
-                    //         if (ListValidFilterOptions != null)
-                    //         {
+                    for (int i = 0; i < v.Count; i++)
+                    {
+                        FormField MasterFormField = null;
 
-                    //             if (!ListValidFilterOptions.Flds.Exists(x => x.Fld == fld))
-                    //             {
-                    //                 AddError(ValidationErrorType.InvalidValue, "Filter", $"Filter array item {i}, fld property value \"{fld}\" is not a valid value for ListKey specified");
-                    //             }
+                        var formFieldItem = v[i];
+                        if (formFieldItem["fld"] == null)
+                            AddError(ValidationErrorType.RequiredPropertyEmpty, "Template", $"Template array item {i}, object is missing required \"fld\" property ");
+                        else
+                        {
+                            var fldKey = formFieldItem["fld"].Value<string>();
+                            if (string.IsNullOrWhiteSpace(fldKey))
+                                AddError(ValidationErrorType.RequiredPropertyEmpty, "Template", $"Template array item {i}, \"fld\" property is empty and required");
 
-                    //         }
-                    //     }
-                    //     if (filterItem["op"] == null)
-                    //         AddError(ValidationErrorType.RequiredPropertyEmpty, "Filter", $"Filter array item {i}, object is missing required \"op\" property ");
-                    //     else
-                    //     {
-                    //         var opType = filterItem["op"].Value<string>();
-                    //         if (!FilterComparisonOperator.Operators.Contains(opType))
-                    //             AddError(ValidationErrorType.InvalidValue, "Filter", $"Filter array item {i}, \"op\" property value of \"{opType}\" is not a valid FilterComparisonOperator type");
-                    //     }
+                            //validate the field name if we can
+                            if (ValidFormFields != null)
+                            {
 
-                    //     if (filterItem["value"] == null)
-                    //         AddError(ValidationErrorType.RequiredPropertyEmpty, "Filter", $"Filter array item {i}, object is missing or is empty the required \"value\" property ");
-                    //     else
-                    //     {
-                    //         if (filterItem["value"].Type == JTokenType.String && string.IsNullOrWhiteSpace(filterItem["value"].Value<string>()))
-                    //             AddError(ValidationErrorType.RequiredPropertyEmpty, "Filter", $"Filter array item {i}, object is missing or is empty the required \"value\" property ");
+                                if (!ValidFormFields.Exists(x => x.Key == fldKey))
+                                {
+                                    AddError(ValidationErrorType.InvalidValue, "Template", $"Template array item {i}, fld property value \"{fldKey}\" is not a valid form field value for formKey specified");
+                                }
+                                else
+                                {
+                                    MasterFormField = ValidFormFields.FirstOrDefault(x => x.Key == fldKey);
+                                }
 
-                    //         if (filterItem["value"].Type == JTokenType.Array && filterItem["value"].Count() == 0)
-                    //             AddError(ValidationErrorType.RequiredPropertyEmpty, "Filter", $"Filter array item {i}, object is missing or is empty the required \"value\" property ARRAY ");
-                    //     }
+                            }
+                        }
 
 
-                    //     //NOTE: value of nothing, null or empty is a valid value so no checking for it here
-                    // }
+                        if (MasterFormField != null)
+                        {
+
+                            if (formFieldItem["hide"] != null)
+                            {
+                                var fieldHideValue = formFieldItem["hide"].Value<bool>();
+                                if (!MasterFormField.Hideable && fieldHideValue == true)
+                                    AddError(ValidationErrorType.InvalidValue, "Template", $"Template array item {i}, \"hide\" property value of \"{fieldHideValue}\" is not valid, this field is core and cannot be hidden");
+                            }
+
+                            if (formFieldItem["type"] != null)
+                            {
+                                if (!MasterFormField.Custom)
+                                    AddError(ValidationErrorType.InvalidValue, "Template", $"Template array item {i}, \"type\" property value is not valid, only Custom fields can have types specified");
+                                else
+                                {//It is a custom field, is it a valid type value
+                                    var templateFieldCustomTypeValue = formFieldItem["type"].Value<string>();
+                                    if (!ValidCustomFieldTypes.Contains(templateFieldCustomTypeValue))
+                                        AddError(ValidationErrorType.InvalidValue, "Template", $"Template array item {i}, \"type\" property value of \"{templateFieldCustomTypeValue}\" is not a valid custom field type");
+                                }
+                            }
+
+                        }
+
+                        if (formFieldItem["required"] == null)
+                            AddError(ValidationErrorType.RequiredPropertyEmpty, "Template", $"Template array item {i}, object is missing required \"required\" property ");
+
+
+                        //NOTE: value of nothing, null or empty is a valid value so no checking for it here
+                    }
                 }
                 catch (Newtonsoft.Json.JsonReaderException ex)
                 {