diff --git a/interfaces/OFBizOrderpicker/OFBizOrderpicker.proto b/interfaces/OFBizOrderpicker/OFBizOrderpicker.proto
index 03b4fd7db40af00e2827447e0cb69427864c4e21..311e55c64bee50aef4e58caefc89f185c4d7fb93 100644
--- a/interfaces/OFBizOrderpicker/OFBizOrderpicker.proto
+++ b/interfaces/OFBizOrderpicker/OFBizOrderpicker.proto
@@ -26,7 +26,7 @@ message OFBizPicklistRole {
 
 message OFBizPicklistBin {
   string picklistId = 1;
-  int32 binLocationNumber = 2;
+  string binLocationNumber = 2;
   repeated OFBizPicklistItem picklistItems = 3;
 }
 
@@ -50,17 +50,17 @@ message FEndInitRow {
   int32 index = 1;
   string productId = 2;
   string inventoryItem_Soll = 3;
-  int32 shipmentBinNr_Soll = 4;
+  string shipmentBinNr_Soll = 4;
 }
 
 message FEndUpdateInventoryItem {
   int32 index = 1;
-  bool isCorrect = 2; // if true -> draw green, if false -> draw red
+  bool inventoryIsCorrect = 2; // if true -> draw green, if false -> draw red
   string inventoryItem_Ist = 3;
 }
 
 message FEndUpdateShipmentBin {
   int32 index = 1;
-  bool isCorrect = 2;
-  int32 shipmentBinNr_Ist = 3;
+  bool shipmentIsCorrect = 2;
+  string shipmentBinNr_Ist = 3;
 }
\ No newline at end of file
diff --git a/interfaces/SimpleScene/SimpleScene.proto b/interfaces/SimpleScene/SimpleScene.proto
index f714e8b5817c91dd848bcd8b4e5c5dde6c909cec..262e821b4fafe5ef04158f36f22e9dac7d81d65c 100644
--- a/interfaces/SimpleScene/SimpleScene.proto
+++ b/interfaces/SimpleScene/SimpleScene.proto
@@ -63,8 +63,9 @@ message IposMonitoringRequest {
   bool exit_notification = 7; // IPos will notify receiver when object has left the frame
   repeated string properties = 8; // properties that shall be monitored: position or id or type
   string monitoringTaskId = 9; // unique for each monitoringRequest. IPosFW uses this info for configuring the communication protocol, e.g., for selecting a specific topic for MQTT-communication; a monitoringRequest with the same monitoringTaskId like a previous request updates this request
-  string requestorProtocol = 10; // communication protocol, e.g., "mqtt"; Assumption: requestor = receiver
-  string serializationType = 11; // accepted values: "protobuf" or "json"
+  string refSystemId = 10;
+  string requestorProtocol = 11; // communication protocol, e.g., "mqtt"; Assumption: requestor = receiver
+  string serializationType = 12; // accepted values: "protobuf" or "json"
 }
 
 message IposMonitoringResponse {