diff --git a/src/fsfw/datapoollocal/ProvidesDataPoolSubscriptionIF.h b/src/fsfw/datapoollocal/ProvidesDataPoolSubscriptionIF.h
index 6170e7ac..e1aca321 100644
--- a/src/fsfw/datapoollocal/ProvidesDataPoolSubscriptionIF.h
+++ b/src/fsfw/datapoollocal/ProvidesDataPoolSubscriptionIF.h
@@ -70,11 +70,12 @@ class ProvidesDataPoolSubscriptionIF {
   virtual ReturnValue_t subscribeForDiagPeriodicPacket(
       subdp::DiagnosticsHkPeriodicParams params) = 0;
 
-  [[deprecated("Please use the new API which takes all arguments as one wrapper struct")]]
-  virtual ReturnValue_t subscribeForPeriodicPacket(sid_t sid, bool enableReporting,
-                             float collectionInterval, bool isDiagnostics,
-                             object_id_t packetDestination) {
-    if(isDiagnostics) {
+  [[deprecated(
+      "Please use the new API which takes all arguments as one wrapper "
+      "struct")]] virtual ReturnValue_t
+  subscribeForPeriodicPacket(sid_t sid, bool enableReporting, float collectionInterval,
+                             bool isDiagnostics, object_id_t packetDestination) {
+    if (isDiagnostics) {
       subdp::DiagnosticsHkPeriodicParams params(sid, enableReporting, collectionInterval);
       return subscribeForDiagPeriodicPacket(params);
     } else {
@@ -96,11 +97,12 @@ class ProvidesDataPoolSubscriptionIF {
   virtual ReturnValue_t subscribeForRegularUpdatePacket(subdp::RegularHkUpdateParams params) = 0;
   virtual ReturnValue_t subscribeForDiagUpdatePacket(subdp::DiagnosticsHkUpdateParams params) = 0;
 
-  [[deprecated("Please use the new API which takes all arguments as one wrapper struct")]]
-  virtual ReturnValue_t subscribeForUpdatePacket(sid_t sid, bool reportingEnabled,
-                                                 bool isDiagnostics,
-                                                 object_id_t packetDestination) {
-    if(isDiagnostics) {
+  [[deprecated(
+      "Please use the new API which takes all arguments as one wrapper "
+      "struct")]] virtual ReturnValue_t
+  subscribeForUpdatePacket(sid_t sid, bool reportingEnabled, bool isDiagnostics,
+                           object_id_t packetDestination) {
+    if (isDiagnostics) {
       subdp::DiagnosticsHkUpdateParams params(sid, reportingEnabled);
       return subscribeForDiagUpdatePacket(params);
     } else {
diff --git a/src/fsfw/internalerror/InternalErrorReporter.cpp b/src/fsfw/internalerror/InternalErrorReporter.cpp
index 32038406..0e404d22 100644
--- a/src/fsfw/internalerror/InternalErrorReporter.cpp
+++ b/src/fsfw/internalerror/InternalErrorReporter.cpp
@@ -128,7 +128,7 @@ ReturnValue_t InternalErrorReporter::initializeLocalDataPool(localpool::DataPool
                                                              LocalDataPoolManager &poolManager) {
   localDataPoolMap.emplace(errorPoolIds::TM_HITS, &tmHitsEntry);
   localDataPoolMap.emplace(errorPoolIds::QUEUE_HITS, &queueHitsEntry);
-  localDataPoolMap.emplace(errorPoolIds::STORE_HITS,&storeHitsEntry);
+  localDataPoolMap.emplace(errorPoolIds::STORE_HITS, &storeHitsEntry);
   poolManager.subscribeForDiagPeriodicPacket(subdp::DiagnosticsHkPeriodicParams(
       internalErrorSid, false,
       static_cast<float>(getPeriodicOperationFrequency()) / static_cast<float>(1000.0)));
diff --git a/src/fsfw/returnvalues/HasReturnvaluesIF.h b/src/fsfw/returnvalues/HasReturnvaluesIF.h
index eec80228..4d59c26b 100644
--- a/src/fsfw/returnvalues/HasReturnvaluesIF.h
+++ b/src/fsfw/returnvalues/HasReturnvaluesIF.h
@@ -10,11 +10,21 @@
 #define MAKE_RETURN_CODE(number) ((INTERFACE_ID << 8) + (number))
 typedef uint16_t ReturnValue_t;
 
+namespace retval {
+static constexpr ReturnValue_t OK = 0;
+static constexpr ReturnValue_t FAILED = 1;
+
+static constexpr ReturnValue_t makeCode(uint8_t classId, uint8_t number) {
+  return (static_cast<ReturnValue_t>(classId) << 8) + number;
+}
+}  // namespace retval
+
 class HasReturnvaluesIF {
  public:
-  static const ReturnValue_t RETURN_OK = 0;
-  static const ReturnValue_t RETURN_FAILED = 1;
-  virtual ~HasReturnvaluesIF() {}
+  static const ReturnValue_t RETURN_OK = retval::OK;
+  static const ReturnValue_t RETURN_FAILED = retval::FAILED;
+
+  virtual ~HasReturnvaluesIF() = default;
 
   /**
    * It is discouraged to use the input parameters 0,0 and 0,1 as this
@@ -23,8 +33,9 @@ class HasReturnvaluesIF {
    * @param number
    * @return
    */
-  static constexpr ReturnValue_t makeReturnCode(uint8_t classId, uint8_t number) {
-    return (static_cast<ReturnValue_t>(classId) << 8) + number;
+  [[deprecated("Use retval::makeCode instead")]] static constexpr ReturnValue_t makeReturnCode(
+      uint8_t classId, uint8_t number) {
+    return retval::makeCode(classId, number);
   }
 };
 
diff --git a/src/fsfw/tmtcservices/CMakeLists.txt b/src/fsfw/tmtcservices/CMakeLists.txt
index 42ac6128..ca3c887e 100644
--- a/src/fsfw/tmtcservices/CMakeLists.txt
+++ b/src/fsfw/tmtcservices/CMakeLists.txt
@@ -9,5 +9,6 @@ target_sources(
           SpacePacketParser.cpp
           TmStoreHelper.cpp
           TmSendHelper.cpp
+          TmStoreAndSendHelper.cpp
           tcHelpers.cpp
           tmHelpers.cpp)
diff --git a/src/fsfw/tmtcservices/TmStoreAndSendHelper.cpp b/src/fsfw/tmtcservices/TmStoreAndSendHelper.cpp
new file mode 100644
index 00000000..9e858ed6
--- /dev/null
+++ b/src/fsfw/tmtcservices/TmStoreAndSendHelper.cpp
@@ -0,0 +1,3 @@
+#include "TmStoreAndSendHelper.h"
+
+StoreAndSendWrapper::StoreAndSendWrapper(TmStoreHelper& storeHelper, TmSendHelper& sendHelper) {}
diff --git a/src/fsfw/tmtcservices/TmStoreAndSendHelper.h b/src/fsfw/tmtcservices/TmStoreAndSendHelper.h
new file mode 100644
index 00000000..d75d6839
--- /dev/null
+++ b/src/fsfw/tmtcservices/TmStoreAndSendHelper.h
@@ -0,0 +1,18 @@
+#ifndef FSFW_TMTCSERVICES_TMSTOREANDSENDHELPER_H
+#define FSFW_TMTCSERVICES_TMSTOREANDSENDHELPER_H
+
+#include "TmSendHelper.h"
+#include "TmStoreHelper.h"
+
+class StoreAndSendWrapper {
+ public:
+  StoreAndSendWrapper(TmStoreHelper& storeHelper, TmSendHelper& sendHelper)
+      : storeHelper(storeHelper), sendHelper(sendHelper) {}
+  ReturnValue_t storeAndSendTmPacket(TmStoreHelper& storeHelper, TmSendHelper& sendHelper,
+                                     bool delOnFailure = true);
+  TmStoreHelper& storeHelper;
+  TmSendHelper& sendHelper;
+  bool delOnFailure = true;
+};
+
+#endif  // FSFW_TMTCSERVICES_TMSTOREANDSENDHELPER_H
diff --git a/src/fsfw/tmtcservices/tmHelpers.h b/src/fsfw/tmtcservices/tmHelpers.h
index e49e11ae..6a754bdf 100644
--- a/src/fsfw/tmtcservices/tmHelpers.h
+++ b/src/fsfw/tmtcservices/tmHelpers.h
@@ -7,9 +7,6 @@
 // I'd prefer to use tm, but there have been nameclashes with the tm struct
 namespace telemetry {
 
-ReturnValue_t storeAndSendTmPacket(TmStoreHelper& storeHelper, TmSendHelper& sendHelper,
-                                   bool delOnFailure = true);
-
 class DataWithObjectIdPrefix : public SerializeIF {
  public:
   DataWithObjectIdPrefix(object_id_t objectId, const uint8_t* srcData, size_t srcDataLen)
@@ -34,8 +31,11 @@ class DataWithObjectIdPrefix : public SerializeIF {
 
   ReturnValue_t deSerialize(const uint8_t** buffer, size_t* size,
                             Endianness streamEndianness) override {
-    // TODO: Implement
-    return HasReturnvaluesIF::RETURN_FAILED;
+    ReturnValue_t result = SerializeAdapter::deSerialize(&objectId, buffer, size, streamEndianness);
+    if (result != retval::OK) {
+      return result;
+    }
+    return retval::FAILED;
   }
 
  private:
diff --git a/unittests/CatchSetup.cpp b/unittests/CatchSetup.cpp
index 1bdc20f4..9206c2e1 100644
--- a/unittests/CatchSetup.cpp
+++ b/unittests/CatchSetup.cpp
@@ -30,6 +30,4 @@ int customSetup() {
   return 0;
 }
 
-int customTeardown() {
-  return 0;
-}
+int customTeardown() { return 0; }
diff --git a/unittests/mocks/LocalPoolOwnerBase.h b/unittests/mocks/LocalPoolOwnerBase.h
index 3233d5d4..f1d1225f 100644
--- a/unittests/mocks/LocalPoolOwnerBase.h
+++ b/unittests/mocks/LocalPoolOwnerBase.h
@@ -7,11 +7,10 @@
 #include <fsfw/datapoollocal/LocalPoolVariable.h>
 #include <fsfw/datapoollocal/LocalPoolVector.h>
 #include <fsfw/datapoollocal/StaticLocalDataSet.h>
-#include "fsfw/datapool/PoolEntry.h"
-
 #include <fsfw/ipc/QueueFactory.h>
 #include <fsfw/objectmanager/SystemObject.h>
 
+#include "fsfw/datapool/PoolEntry.h"
 #include "mocks/MessageQueueMock.h"
 #include "tests/TestsConfig.h"