diff --git a/fw-update/aggregate_update_manager.cpp b/fw-update/aggregate_update_manager.cpp
new file mode 100644
index 0000000..c27db95
--- /dev/null
+++ b/fw-update/aggregate_update_manager.cpp
@@ -0,0 +1,54 @@
+#include "aggregate_update_manager.hpp"
+
+namespace pldm::fw_update
+{
+
+Response AggregateUpdateManager::handleRequest(
+    mctp_eid_t eid, uint8_t command, const pldm_msg* request, size_t reqMsgLen)
+{
+    Response response;
+    response = UpdateManager::handleRequest(eid, command, request, reqMsgLen);
+    auto responseMsg = new (response.data()) pldm_msg;
+    if (responseMsg->payload[0] != PLDM_FWUP_COMMAND_NOT_EXPECTED)
+    {
+        return response;
+    }
+    for (auto& [_, updateManager] : updateManagers)
+    {
+        response =
+            updateManager->handleRequest(eid, command, request, reqMsgLen);
+        if (responseMsg->payload[0] != PLDM_FWUP_COMMAND_NOT_EXPECTED)
+        {
+            return response;
+        }
+    }
+    return response;
+}
+
+void AggregateUpdateManager::eraseUpdateManager(
+    const SoftwareIdentifier& softwareIdentifier)
+{
+    updateManagers.erase(softwareIdentifier);
+    descriptorMap.erase(softwareIdentifier);
+    componentInfoMap.erase(softwareIdentifier);
+}
+
+void AggregateUpdateManager::eraseUpdateManagerIf(
+    std::function<bool(const SoftwareIdentifier&)>&& predicate)
+{
+    for (auto it = updateManagers.begin(); it != updateManagers.end();)
+    {
+        if (predicate(it->first))
+        {
+            descriptorMap.erase(it->first);
+            componentInfoMap.erase(it->first);
+            it = updateManagers.erase(it);
+        }
+        else
+        {
+            ++it;
+        }
+    }
+}
+
+} // namespace pldm::fw_update