diff --git a/dump-extensions/openpower-dumps/dump_manager_resource.cpp b/dump-extensions/openpower-dumps/dump_manager_resource.cpp
index de27c94..020556c 100644
--- a/dump-extensions/openpower-dumps/dump_manager_resource.cpp
+++ b/dump-extensions/openpower-dumps/dump_manager_resource.cpp
@@ -73,7 +73,7 @@
 }
 
 sdbusplus::message::object_path
-    Manager::createDump(std::map<std::string, std::string> params)
+    Manager::createDump(phosphor::dump::DumpCreateParams params)
 {
 
     using NotAllowed =
@@ -87,6 +87,10 @@
             Reason("Resource dump can be initiated only when the host is up"));
         return std::string();
     }
+
+    using InvalidArgument =
+        sdbusplus::xyz::openbmc_project::Common::Error::InvalidArgument;
+    using Argument = xyz::openbmc_project::Common::InvalidArgument;
     using CreateParameters =
         sdbusplus::com::ibm::Dump::server::Create::CreateParameters;
 
@@ -95,12 +99,61 @@
     auto objPath = std::filesystem::path(baseEntryPath) / idString;
     std::time_t timeStamp = std::time(nullptr);
 
-    std::string vspString = params[sdbusplus::com::ibm::Dump::server::Create::
-                                       convertCreateParametersToString(
-                                           CreateParameters::VSPString)];
-    std::string pwd =
-        params[sdbusplus::com::ibm::Dump::server::Create::
-                   convertCreateParametersToString(CreateParameters::Password)];
+    std::string vspString;
+    auto iter = params.find(
+        sdbusplus::com::ibm::Dump::server::Create::
+            convertCreateParametersToString(CreateParameters::VSPString));
+    if (iter == params.end())
+    {
+        // Host will generate a default dump if no resource selector string
+        // is provided. The default dump will be a non-disruptive system dump.
+        log<level::INFO>(
+            "VSP string is not provided, a non-disruptive system dump will be "
+            "generated by the host");
+    }
+    else
+    {
+        try
+        {
+            vspString = std::get<std::string>(iter->second);
+        }
+        catch (const std::bad_variant_access& e)
+        {
+            // Exception will be raised if the input is not string
+            log<level::ERR>(
+                fmt::format("An invalid  vsp string is passed errormsg({})",
+                            e.what())
+                    .c_str());
+            elog<InvalidArgument>(Argument::ARGUMENT_NAME("VSP_STRING"),
+                                  Argument::ARGUMENT_VALUE("INVALID INPUT"));
+        }
+    }
+
+    std::string pwd;
+    iter = params.find(
+        sdbusplus::com::ibm::Dump::server::Create::
+            convertCreateParametersToString(CreateParameters::Password));
+    if (iter == params.end())
+    {
+        log<level::ERR>("Required argument password is missing");
+        elog<InvalidArgument>(Argument::ARGUMENT_NAME("PASSOWORD"),
+                              Argument::ARGUMENT_VALUE("MISSING"));
+    }
+
+    try
+    {
+        pwd = std::get<std::string>(iter->second);
+    }
+    catch (const std::bad_variant_access& e)
+    {
+        // Exception will be raised if the input is not string
+        log<level::ERR>(
+            fmt::format("An invalid password string is passed errormsg({})",
+                        e.what())
+                .c_str());
+        elog<InvalidArgument>(Argument::ARGUMENT_NAME("PASSWORD"),
+                              Argument::ARGUMENT_VALUE("INVALID INPUT"));
+    }
 
     try
     {
diff --git a/dump-extensions/openpower-dumps/dump_manager_resource.hpp b/dump-extensions/openpower-dumps/dump_manager_resource.hpp
index 45ee1bf..e30dfec 100644
--- a/dump-extensions/openpower-dumps/dump_manager_resource.hpp
+++ b/dump-extensions/openpower-dumps/dump_manager_resource.hpp
@@ -68,7 +68,7 @@
      *  @return object_path - The object path of the new entry.
      */
     sdbusplus::message::object_path
-        createDump(std::map<std::string, std::string> params) override;
+        createDump(phosphor::dump::DumpCreateParams params) override;
 };
 
 } // namespace resource
diff --git a/dump-extensions/openpower-dumps/dump_manager_system.cpp b/dump-extensions/openpower-dumps/dump_manager_system.cpp
index 531cde8..ae9aaa5 100644
--- a/dump-extensions/openpower-dumps/dump_manager_system.cpp
+++ b/dump-extensions/openpower-dumps/dump_manager_system.cpp
@@ -72,7 +72,7 @@
 }
 
 sdbusplus::message::object_path
-    Manager::createDump(std::map<std::string, std::string> params)
+    Manager::createDump(phosphor::dump::DumpCreateParams params)
 {
     constexpr auto SYSTEMD_SERVICE = "org.freedesktop.systemd1";
     constexpr auto SYSTEMD_OBJ_PATH = "/org/freedesktop/systemd1";
diff --git a/dump-extensions/openpower-dumps/dump_manager_system.hpp b/dump-extensions/openpower-dumps/dump_manager_system.hpp
index a59b692..7170b3f 100644
--- a/dump-extensions/openpower-dumps/dump_manager_system.hpp
+++ b/dump-extensions/openpower-dumps/dump_manager_system.hpp
@@ -68,7 +68,7 @@
      *  @return object_path - The path to the new dump entry.
      */
     sdbusplus::message::object_path
-        createDump(std::map<std::string, std::string> params) override;
+        createDump(phosphor::dump::DumpCreateParams params) override;
 };
 
 } // namespace system
diff --git a/dump_manager.hpp b/dump_manager.hpp
index e4ba730..3f111f3 100644
--- a/dump_manager.hpp
+++ b/dump_manager.hpp
@@ -11,6 +11,8 @@
 namespace dump
 {
 
+using DumpCreateParams =
+    std::map<std::string, std::variant<std::string, uint64_t>>;
 using Iface = sdbusplus::server::object::object<
     sdbusplus::xyz::openbmc_project::Collection::server::DeleteAll>;
 
diff --git a/dump_manager_bmc.cpp b/dump_manager_bmc.cpp
index 2cf23aa..156ea9f 100644
--- a/dump_manager_bmc.cpp
+++ b/dump_manager_bmc.cpp
@@ -39,7 +39,7 @@
 } // namespace internal
 
 sdbusplus::message::object_path
-    Manager::createDump(std::map<std::string, std::string> params)
+    Manager::createDump(phosphor::dump::DumpCreateParams params)
 {
     if (!params.empty())
     {
diff --git a/dump_manager_bmc.hpp b/dump_manager_bmc.hpp
index 604012b..ddc094ae 100644
--- a/dump_manager_bmc.hpp
+++ b/dump_manager_bmc.hpp
@@ -95,7 +95,7 @@
      *  @return object_path - The object path of the new dump entry.
      */
     sdbusplus::message::object_path
-        createDump(std::map<std::string, std::string> params) override;
+        createDump(phosphor::dump::DumpCreateParams params) override;
 
   private:
     /** @brief Create Dump entry d-bus object