diff --git a/src/fsfw/cfdp/CfdpHandler.cpp b/src/fsfw/cfdp/CfdpHandler.cpp
index b9c8b580..cfe423e3 100644
--- a/src/fsfw/cfdp/CfdpHandler.cpp
+++ b/src/fsfw/cfdp/CfdpHandler.cpp
@@ -3,7 +3,6 @@
 #include "fsfw/cfdp/CfdpMessage.h"
 #include "fsfw/ipc/CommandMessage.h"
 #include "fsfw/ipc/QueueFactory.h"
-#include "fsfw/objectmanager/ObjectManager.h"
 #include "fsfw/storagemanager/storeAddress.h"
 #include "fsfw/tmtcservices/AcceptsTelemetryIF.h"
 
diff --git a/src/fsfw/tcdistribution/CFDPDistributor.h b/src/fsfw/tcdistribution/CFDPDistributor.h
index 1d0e4238..17e79ff3 100644
--- a/src/fsfw/tcdistribution/CFDPDistributor.h
+++ b/src/fsfw/tcdistribution/CFDPDistributor.h
@@ -5,7 +5,6 @@
 
 #include "../returnvalues/returnvalue.h"
 #include "../tmtcpacket/cfdp/CfdpPacketStored.h"
-
 #include "../tmtcservices/AcceptsTelecommandsIF.h"
 #include "../tmtcservices/VerificationReporter.h"
 #include "CFDPDistributorIF.h"
diff --git a/src/fsfw/tcdistribution/CcsdsPacketCheckIF.h b/src/fsfw/tcdistribution/CcsdsPacketCheckIF.h
index 1406bc36..251203d4 100644
--- a/src/fsfw/tcdistribution/CcsdsPacketCheckIF.h
+++ b/src/fsfw/tcdistribution/CcsdsPacketCheckIF.h
@@ -1,13 +1,9 @@
 #ifndef FSFW_TCDISTRIBUTION_TCPACKETCHECKIF_H_
 #define FSFW_TCDISTRIBUTION_TCPACKETCHECKIF_H_
 
-<<<<<<< HEAD:src/fsfw/tcdistribution/CcsdsPacketCheckIF.h
 #include <cstddef>
-=======
-#include "../returnvalues/returnvalue.h"
->>>>>>> origin/development:src/fsfw/tcdistribution/TcPacketCheckIF.h
 
-#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw/returnvalues/returnvalue.h"
 
 class SpacePacketReader;
 
diff --git a/src/fsfw/tcdistribution/PusDistributor.cpp b/src/fsfw/tcdistribution/PusDistributor.cpp
index a2d3e321..c94d5736 100644
--- a/src/fsfw/tcdistribution/PusDistributor.cpp
+++ b/src/fsfw/tcdistribution/PusDistributor.cpp
@@ -103,7 +103,7 @@ ReturnValue_t PusDistributor::callbackAfterSending(ReturnValue_t queueStatus) {
   if (queueStatus != returnvalue::OK) {
     tcStatus = queueStatus;
   }
-  if (tcStatus != RETURN_OK) {
+  if (tcStatus != returnvalue::OK) {
     verifyChannel->sendFailureReport({tcverif::ACCEPTANCE_FAILURE, reader, tcStatus});
     // A failed packet is deleted immediately after reporting,
     // otherwise it will block memory.
@@ -111,7 +111,7 @@ ReturnValue_t PusDistributor::callbackAfterSending(ReturnValue_t queueStatus) {
     return returnvalue::FAILED;
   } else {
     verifyChannel->sendSuccessReport({tcverif::ACCEPTANCE_SUCCESS, reader});
-    return RETURN_OK;
+    return returnvalue::OK;
   }
 }
 
diff --git a/src/fsfw/tcdistribution/PusPacketChecker.h b/src/fsfw/tcdistribution/PusPacketChecker.h
index ee56e1f8..249221bb 100644
--- a/src/fsfw/tcdistribution/PusPacketChecker.h
+++ b/src/fsfw/tcdistribution/PusPacketChecker.h
@@ -2,7 +2,7 @@
 #define FSFW_TCDISTRIBUTION_TCPACKETCHECKPUS_H_
 
 #include "fsfw/FSFW.h"
-#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw/returnvalues/returnvalue.h"
 #include "fsfw/tmtcpacket/pus/defs.h"
 #include "fsfw/tmtcservices/PusVerificationReport.h"
 
diff --git a/src/fsfw/tcdistribution/TcPacketCheckCFDP.cpp b/src/fsfw/tcdistribution/TcPacketCheckCFDP.cpp
index 504306c6..8171a392 100644
--- a/src/fsfw/tcdistribution/TcPacketCheckCFDP.cpp
+++ b/src/fsfw/tcdistribution/TcPacketCheckCFDP.cpp
@@ -9,4 +9,3 @@ ReturnValue_t CfdpPacketChecker::checkPacket(const SpacePacketReader& currentPac
 }
 
 uint16_t CfdpPacketChecker::getApid() const { return apid; }
-
diff --git a/src/fsfw/tcdistribution/definitions.h b/src/fsfw/tcdistribution/definitions.h
index ce640308..3d455077 100644
--- a/src/fsfw/tcdistribution/definitions.h
+++ b/src/fsfw/tcdistribution/definitions.h
@@ -4,7 +4,7 @@
 #include <cstdint>
 
 #include "fsfw/returnvalues/FwClassIds.h"
-#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw/returnvalues/returnvalue.h"
 
 namespace tcdistrib {
 static const uint8_t INTERFACE_ID = CLASS_ID::PACKET_CHECK;
diff --git a/src/fsfw/timemanager/TimeReaderIF.h b/src/fsfw/timemanager/TimeReaderIF.h
index 289a0058..a3343e1c 100644
--- a/src/fsfw/timemanager/TimeReaderIF.h
+++ b/src/fsfw/timemanager/TimeReaderIF.h
@@ -4,7 +4,7 @@
 #include <cstdlib>
 
 #include "TimeStampIF.h"
-#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw/returnvalues/returnvalue.h"
 
 class TimeReaderIF : public TimeStampIF {
  public:
diff --git a/src/fsfw/tmtcpacket/ccsds/SpacePacketReader.h b/src/fsfw/tmtcpacket/ccsds/SpacePacketReader.h
index dbffa7bf..ff22510c 100644
--- a/src/fsfw/tmtcpacket/ccsds/SpacePacketReader.h
+++ b/src/fsfw/tmtcpacket/ccsds/SpacePacketReader.h
@@ -3,7 +3,7 @@
 
 #include <cstddef>
 
-#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw/returnvalues/returnvalue.h"
 #include "fsfw/tmtcpacket/ReadablePacketIF.h"
 #include "fsfw/tmtcpacket/RedirectableDataPointerIF.h"
 #include "fsfw/tmtcpacket/ccsds/defs.h"
diff --git a/src/fsfw/tmtcpacket/packetmatcher/PacketMatchTree.h b/src/fsfw/tmtcpacket/packetmatcher/PacketMatchTree.h
index 6accb66f..b9d03f1d 100644
--- a/src/fsfw/tmtcpacket/packetmatcher/PacketMatchTree.h
+++ b/src/fsfw/tmtcpacket/packetmatcher/PacketMatchTree.h
@@ -7,11 +7,7 @@
 #include "fsfw/tmtcpacket/pus/tm/PusTmIF.h"
 #include "fsfw/tmtcpacket/pus/tm/PusTmMinimal.h"
 
-<<<<<<< HEAD
 class PacketMatchTree : public MatchTree<PusTmIF*> {
-=======
-class PacketMatchTree : public MatchTree<TmPacketMinimal*> {
->>>>>>> origin/development
  public:
   explicit PacketMatchTree(Node* root);
   explicit PacketMatchTree(iterator root);
diff --git a/src/fsfw/tmtcpacket/pus/tm/PusTmMinimal.h b/src/fsfw/tmtcpacket/pus/tm/PusTmMinimal.h
index 7bfae4f2..3b2e7600 100644
--- a/src/fsfw/tmtcpacket/pus/tm/PusTmMinimal.h
+++ b/src/fsfw/tmtcpacket/pus/tm/PusTmMinimal.h
@@ -2,7 +2,7 @@
 #define FRAMEWORK_TMTCPACKET_PUS_TMPACKETMINIMAL_H_
 
 #include "PusTmIF.h"
-#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw/returnvalues/returnvalue.h"
 #include "fsfw/tmtcpacket/ccsds/SpacePacketReader.h"
 #include "fsfw/tmtcpacket/pus/RawUserDataReaderIF.h"
 
diff --git a/src/fsfw/tmtcservices/TmSendHelper.h b/src/fsfw/tmtcservices/TmSendHelper.h
index 5d39d5d1..9fee84c4 100644
--- a/src/fsfw/tmtcservices/TmSendHelper.h
+++ b/src/fsfw/tmtcservices/TmSendHelper.h
@@ -5,7 +5,7 @@
 #include "fsfw/internalerror/InternalErrorReporterIF.h"
 #include "fsfw/ipc/MessageQueueIF.h"
 #include "fsfw/ipc/messageQueueDefinitions.h"
-#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw/returnvalues/returnvalue.h"
 
 class TmSendHelper {
  public:
diff --git a/src/fsfw/tmtcservices/tcHelpers.h b/src/fsfw/tmtcservices/tcHelpers.h
index e2bbf509..9b1e1fdb 100644
--- a/src/fsfw/tmtcservices/tcHelpers.h
+++ b/src/fsfw/tmtcservices/tcHelpers.h
@@ -1,7 +1,7 @@
 #ifndef FSFW_TMTCSERVICES_TCHELPERS_H
 #define FSFW_TMTCSERVICES_TCHELPERS_H
 
-#include "fsfw/returnvalues/HasReturnvaluesIF.h"
+#include "fsfw/returnvalues/returnvalue.h"
 #include "fsfw/storagemanager/StorageManagerIF.h"
 #include "fsfw/tmtcpacket/pus/tc.h"