diff --git a/FeatureRenderer.pyt b/FeatureRenderer.pyt
index cdde665..21ac278 100644
--- a/FeatureRenderer.pyt
+++ b/FeatureRenderer.pyt
@@ -369,7 +369,9 @@ class FeatureRenderer:
                                 if symbol_code == "#":
                                     continue
 
-                                code_components = get_code_components(symbol_code)
+                                code_components = get_code_components(
+                                    symbol_code, leg_id
+                                )
                                 symbol_key = code_components["symbol_key"]
 
                                 if symbol_key:
@@ -385,13 +387,11 @@ class FeatureRenderer:
 
                                     # Print message if symbol could not be found
                                     if not symbol_found:
-                                        messages.AddMessage(
+                                        arcpy.AddWarning(
                                             f"Could not find symbol in gallery {symbol_key}"
                                         )
                             else:
-                                messages.AddMessage(
-                                    f"{leg_id} is not in legend table yet"
-                                )
+                                arcpy.AddWarning(f"{leg_id} is not in legend table")
 
                             # Add user defined labels
                             if add_labels:
@@ -529,7 +529,9 @@ class FeatureRenderer:
                                 if symbol_code == "#":
                                     continue
 
-                                code_components = get_code_components(symbol_code)
+                                code_components = get_code_components(
+                                    symbol_code, leg_id
+                                )
                                 color_value = code_components["color"]
                                 symbol_color_value = code_components["symbol_color"]
 
@@ -671,11 +673,11 @@ def get_symbol_code_for_shape(shape_type, symbol_codes):
         )
 
 
-def get_code_components(code):
+def get_code_components(code, leg_id):
     code_len = len(code)
     if code_len == 4:
         return {
-            "color": decode_color(code),
+            "color": decode_color(code, leg_id),
             "symbol_key": "",
             "symbol_color": {},
         }
@@ -695,13 +697,13 @@ def get_code_components(code):
         }
     elif code_len == 11:
         return {
-            "color": decode_color(code[:4]),
+            "color": decode_color(code[:4], leg_id),
             "symbol_key": code[4:12],
             "symbol_color": {},
         }
     elif code_len == 14:
         return {
-            "color": decode_color(code[:4]),
+            "color": decode_color(code[:4], leg_id),
             "symbol_key": code[4:11],
             "symbol_color": get_symbol_color(code[11:]),
         }
@@ -709,19 +711,19 @@ def get_code_components(code):
         raise ValueError(f"Execution aborted: unknown symbol code {code}")
 
 
-def decode_color(color_string):
+def decode_color(color_string, leg_id):
     return {
         "CMYK": [
-            get_percentage_from_letter(color_string[0]),
-            get_percentage_from_letter(color_string[1]),
-            get_percentage_from_letter(color_string[2]),
-            get_percentage_from_letter(color_string[3]),
+            get_percentage_from_letter(color_string[0], leg_id),
+            get_percentage_from_letter(color_string[1], leg_id),
+            get_percentage_from_letter(color_string[2], leg_id),
+            get_percentage_from_letter(color_string[3], leg_id),
             100,
         ],
     }
 
 
-def get_percentage_from_letter(letter):
+def get_percentage_from_letter(letter, leg_id):
     if letter == "F":
         return 15
     elif letter == "V":
@@ -733,8 +735,10 @@ def get_percentage_from_letter(letter):
     else:
         try:
             return int(letter) * 10
-        except ValueError as _:
-            raise ValueError(f"Execution aborted: unknown color code {letter}")
+        except Exception as _:
+            raise ValueError(
+                f"Execution aborted: unknown color code {letter} for {leg_id}"
+            )
 
 
 def get_symbol_color(color_string):