diff --git a/ipc/CommandMessage.cpp b/ipc/CommandMessage.cpp
index e1d4dfae..0aeaa79a 100644
--- a/ipc/CommandMessage.cpp
+++ b/ipc/CommandMessage.cpp
@@ -84,9 +84,8 @@ void CommandMessage::setToUnknownCommand() {
 
 void CommandMessage::setReplyRejected(ReturnValue_t reason,
         Command_t initialCommand) {
-    std::memcpy(getData(), &reason, sizeof(reason));
-    std::memcpy(getData() + sizeof(reason), &initialCommand,
-            sizeof(initialCommand));
+    setParameter(reason);
+    setParameter2(initialCommand);
 }
 
 ReturnValue_t CommandMessage::getReplyRejectedReason(
diff --git a/osal/host/FixedTimeslotTask.cpp b/osal/host/FixedTimeslotTask.cpp
index 48d11843..dac399f6 100644
--- a/osal/host/FixedTimeslotTask.cpp
+++ b/osal/host/FixedTimeslotTask.cpp
@@ -92,7 +92,7 @@ ReturnValue_t FixedTimeslotTask::sleepFor(uint32_t ms) {
 void FixedTimeslotTask::taskFunctionality() {
     // A local iterator for the Polling Sequence Table is created to
     // find the start time for the first entry.
-    SlotListIter slotListIter = pollingSeqTable.current;
+    FixedSlotSequence::SlotListIter slotListIter = pollingSeqTable.current;
     // Get start time for first entry.
     chron_ms interval(slotListIter->pollingTimeMs);
     auto currentStartTime {
diff --git a/osal/host/QueueMapManager.h b/osal/host/QueueMapManager.h
index 34f0fc95..499b1622 100644
--- a/osal/host/QueueMapManager.h
+++ b/osal/host/QueueMapManager.h
@@ -36,7 +36,7 @@ public:
 private:
 	//! External instantiation is forbidden.
 	QueueMapManager();
-	std::atomic<uint32_t> queueCounter = MessageQueueIF::NO_QUEUE + 1;
+	std::atomic<uint32_t> queueCounter = 1;
 	MutexIF* mapLock;
 	QueueMap queueMap;
 	static QueueMapManager* mqManagerInstance;
diff --git a/tasks/ExecutableObjectIF.h b/tasks/ExecutableObjectIF.h
index 516b4084..f66b53da 100644
--- a/tasks/ExecutableObjectIF.h
+++ b/tasks/ExecutableObjectIF.h
@@ -43,9 +43,18 @@ public:
 	 * a reference to the executing task
 	 * @param task_ Pointer to the taskIF of this task
 	 */
-	virtual void setTaskIF(PeriodicTaskIF* task_) {
+	virtual void setTaskIF(PeriodicTaskIF* task_) {};
 
-	}
+	/**
+	 * This function will be called after the object was assigned to a specific
+	 * task.
+	 *
+	 * Example: Can be used to get task execution frequency.
+	 * The task is created after initialize() and the object ctors have been
+	 * called so the execution frequency can't be cached in initialize()
+	 * @return
+	 */
+	//virtual ReturnValue_t initializeAfterTaskCreation() = 0;
 };
 
 #endif /* EXECUTABLEOBJECTIF_H_ */
diff --git a/tasks/FixedSequenceSlot.cpp b/tasks/FixedSequenceSlot.cpp
index c46b4fc0..430ce019 100644
--- a/tasks/FixedSequenceSlot.cpp
+++ b/tasks/FixedSequenceSlot.cpp
@@ -9,6 +9,7 @@ FixedSequenceSlot::FixedSequenceSlot(object_id_t handlerId, uint32_t setTime,
 	if(executingTask != nullptr) {
 	    handler->setTaskIF(executingTask);
 	}
+	//handler->initializeAfterTaskCreation();
 }
 
 FixedSequenceSlot::~FixedSequenceSlot() {}
diff --git a/tmtcservices/CommandingServiceBase.cpp b/tmtcservices/CommandingServiceBase.cpp
index acf66389..5a48bd63 100644
--- a/tmtcservices/CommandingServiceBase.cpp
+++ b/tmtcservices/CommandingServiceBase.cpp
@@ -109,8 +109,8 @@ void CommandingServiceBase::handleCommandMessage(CommandMessage* reply) {
 	 * command as failure parameter 1 */
 	if(reply->getCommand() == CommandMessage::REPLY_REJECTED and
 			result == RETURN_FAILED) {
-		result = reply->getReplyRejectedReason(
-				reinterpret_cast<Command_t*>(&failureParameter1));
+		result = reply->getReplyRejectedReason();
+		failureParameter1 = iter->command;
 	}
 
 	switch (result) {