diff --git a/phosphor-power-supply/psu_manager.hpp b/phosphor-power-supply/psu_manager.hpp
index 46560a7..d471212 100644
--- a/phosphor-power-supply/psu_manager.hpp
+++ b/phosphor-power-supply/psu_manager.hpp
@@ -126,6 +126,7 @@
 
         onOffConfig(phosphor::pmbus::ON_OFF_CONFIG_CONTROL_PIN_ONLY);
         clearFaults();
+        updateMissingPSUs();
         updateInventory();
         setPowerConfigGPIO();
     }
@@ -282,6 +283,11 @@
     void populateSysProperties(const util::DbusPropertyMap& properties);
 
     /**
+     * @brief Update inventory for missing required power supplies
+     */
+    void updateMissingPSUs();
+
+    /**
      * @brief Perform power supply configuration validation.
      * @details Validates if the existing power supply properties are a
      * supported configuration, and acts on its findings such as logging errors.