diff --git a/xos/synchronizer/models/simpleexampleservice.xproto b/xos/synchronizer/models/simpleexampleservice.xproto
index 1fe1420..6f08c85 100644
--- a/xos/synchronizer/models/simpleexampleservice.xproto
+++ b/xos/synchronizer/models/simpleexampleservice.xproto
@@ -7,15 +7,11 @@
 
     required string service_message = 1 [
         help_text = "Service Message to display in web page",
-        blank = False,
         db_index = False,
-        max_length = 254,
-        null = False];
+        max_length = 254];
     optional string service_secret = 2 [
         help_text = "Service Secret to place in a file",
-        blank = True,
-        db_index = False,
-        null = False];
+        db_index = False];
 }
 
 // Note: Named ColorNew to prevent name collision with ExampleService's Color.
@@ -26,16 +22,12 @@
 
      required string name = 1 [
          help_text = "Name for this color",
-         blank = False,
          db_index = False,
-         max_length = 256,
-         null = False];
+         max_length = 256];
      required string html_code = 2 [
          help_text = "HTML Code for this color",
-         blank = False,
          db_index = False,
-         max_length = 256,
-         null = False];
+         max_length = 256];
 }
 
 // Note: Named ServiceInstanceWithCompute2 to prevent name collision with ExampleService.ServiceInstanceWithCompute.
@@ -57,25 +49,17 @@
 
      required string tenant_message = 1 [
          help_text = "Tenant Message to Display",
-         blank = False,
          db_index = False,
-         max_length = 254,
-         null = False];
+         max_length = 254];
      optional manytoone foreground_color->ColorNew:serviceinstance_foreground_colors = 2:1001 [
          help_text = "Foreground color to use in web page",
-         db_index = True,
-         null = True,
-         blank = True];
+         db_index = True];
      optional manytoone background_color->ColorNew:serviceinstance_background_colors = 3:1002 [
          help_text = "Background color to use in web page",
-         blank = True,
-         db_index = True,
-         null = True];
+         db_index = True];
      optional string tenant_secret = 4 [
          help_text = "Tenant Secret to place in a file",
-         blank = True,
-         db_index = False,
-         null = False];
+         db_index = False];
 }
 
 // Note: Named EmbeddedImageNew to prevent name collision with ExampleService's EmbeddedImage.
@@ -86,19 +70,13 @@
 
      required string name = 1 [
          help_text = "Name for this image",
-         blank = False,
          db_index = False,
-         max_length = 256,
-         null = False];
+         max_length = 256];
      required string url = 2 [
          help_text = "URL for this image",
-         blank = False,
          db_index = False,
-         max_length = 256,
-         null = False];
+         max_length = 256];
      optional manytoone serviceinstance->SimpleExampleServiceInstance:embedded_images = 3:1001 [
          help_text = "ServiceInstance that represents the web page where this embedded image should be placed",
-         blank = True,
-         db_index = True,
-         null = True];
+         db_index = True];
 }