diff --git a/vpd-manager/include/error_codes.hpp b/vpd-manager/include/error_codes.hpp
index ad436c4..204b96a 100644
--- a/vpd-manager/include/error_codes.hpp
+++ b/vpd-manager/include/error_codes.hpp
@@ -18,9 +18,13 @@
 static constexpr auto MISSING_ACTION_TAG = 2003;
 static constexpr auto FRU_PATH_NOT_FOUND = 2004;
 static constexpr auto JSON_PARSE_ERROR = 2005;
+static constexpr auto JSON_MISSING_GPIO_INFO = 2006;
 
 // Generic errors.
 static constexpr auto INVALID_INPUT_PARAMETER = 3001;
+static constexpr auto DEVICE_NOT_PRESENT = 2006;
+static constexpr auto DEVICE_PRESENCE_UNKNOWN = 2007;
+static constexpr auto GPIO_LINE_EXCEPTION = 2008;
 
 const std::unordered_map<int, std::string> errorCodeMap = {
     {FILE_NOT_FOUND, "File does not exist."},
@@ -33,6 +37,11 @@
     {FRU_PATH_NOT_FOUND, "The FRU path is not found in the JSON."},
     {JSON_PARSE_ERROR, "Error while parsing JSON file."},
     {INVALID_INPUT_PARAMETER,
-     "Either one of the input parameter is invalid or empty."}};
+     "Either one of the input parameter is invalid or empty."},
+    {JSON_MISSING_GPIO_INFO, "JSON missing required GPIO info."},
+    {DEVICE_NOT_PRESENT,
+     "Presence pin read successfully but device was absent."},
+    {DEVICE_PRESENCE_UNKNOWN, "Exception on presence line GPIO."},
+    {GPIO_LINE_EXCEPTION, "There was an exception in GPIO line."}};
 } // namespace error_code
 } // namespace vpd