diff --git a/backend/src/main/java/org/eclipse/tractusx/puris/backend/common/api/logic/dto/SuccessfullRequestDto.java b/backend/src/main/java/org/eclipse/tractusx/puris/backend/common/api/logic/dto/SuccessfulRequestDto.java
similarity index 94%
rename from backend/src/main/java/org/eclipse/tractusx/puris/backend/common/api/logic/dto/SuccessfullRequestDto.java
rename to backend/src/main/java/org/eclipse/tractusx/puris/backend/common/api/logic/dto/SuccessfulRequestDto.java
index 9cb7cd3f..4195dba9 100644
--- a/backend/src/main/java/org/eclipse/tractusx/puris/backend/common/api/logic/dto/SuccessfullRequestDto.java
+++ b/backend/src/main/java/org/eclipse/tractusx/puris/backend/common/api/logic/dto/SuccessfulRequestDto.java
@@ -30,8 +30,8 @@
 @ToString
 @NoArgsConstructor
 @AllArgsConstructor
-public class SuccessfullRequestDto {
+public class SuccessfulRequestDto {
 
-    @JsonProperty("request-id")
+    @JsonProperty("requestId")
     private UUID requestId;
 }
diff --git a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/controller/ProductStockRequestApiController.java b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/controller/ProductStockRequestApiController.java
index eca4b2ea..6cb0bba3 100644
--- a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/controller/ProductStockRequestApiController.java
+++ b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/controller/ProductStockRequestApiController.java
@@ -25,13 +25,12 @@
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import lombok.extern.slf4j.Slf4j;
-import org.eclipse.tractusx.puris.backend.common.api.controller.exception.RequestIdAlreadyUsedException;
 import org.eclipse.tractusx.puris.backend.common.api.domain.model.MessageHeader;
 import org.eclipse.tractusx.puris.backend.common.api.domain.model.ProductStockRequest;
 import org.eclipse.tractusx.puris.backend.common.api.domain.model.datatype.DT_RequestStateEnum;
 import org.eclipse.tractusx.puris.backend.common.api.logic.dto.MessageHeaderDto;
 import org.eclipse.tractusx.puris.backend.common.api.logic.dto.RequestDto;
-import org.eclipse.tractusx.puris.backend.common.api.logic.dto.SuccessfullRequestDto;
+import org.eclipse.tractusx.puris.backend.common.api.logic.dto.SuccessfulRequestDto;
 import org.eclipse.tractusx.puris.backend.common.api.logic.service.RequestApiService;
 import org.eclipse.tractusx.puris.backend.common.api.logic.service.RequestService;
 import org.eclipse.tractusx.puris.backend.common.edc.logic.service.EdcAdapterService;
@@ -129,7 +128,7 @@ public ResponseEntity<Object> postRequest(@RequestBody String requestBody) {
         respondAsyncThread.start();
 
         // if the request has been correctly taken over, return 202
-        return ResponseEntity.status(HttpStatusCode.valueOf(202)).body(new SuccessfullRequestDto(requestId));
+        return ResponseEntity.status(HttpStatusCode.valueOf(202)).body(new SuccessfulRequestDto(requestId));
         
     }
 
diff --git a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/controller/ProductStockResponseApiController.java b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/controller/ProductStockResponseApiController.java
index 8b9acb11..eda21b77 100644
--- a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/controller/ProductStockResponseApiController.java
+++ b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/controller/ProductStockResponseApiController.java
@@ -25,7 +25,7 @@
 
 import org.eclipse.tractusx.puris.backend.common.api.domain.model.ProductStockRequest;
 import org.eclipse.tractusx.puris.backend.common.api.domain.model.datatype.DT_RequestStateEnum;
-import org.eclipse.tractusx.puris.backend.common.api.logic.dto.SuccessfullRequestDto;
+import org.eclipse.tractusx.puris.backend.common.api.logic.dto.SuccessfulRequestDto;
 import org.eclipse.tractusx.puris.backend.common.api.logic.service.RequestService;
 import org.eclipse.tractusx.puris.backend.common.api.logic.service.ResponseApiService;
 import org.eclipse.tractusx.puris.backend.stock.logic.adapter.ApiMarshallingService;
@@ -39,7 +39,6 @@
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
-import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
 import lombok.extern.slf4j.Slf4j;
@@ -98,7 +97,7 @@ public ResponseEntity<Object> postResponse(@RequestBody String body) {
         responseApiService.consumeResponse(productStockResponseDto);
 
         // if the request has been correctly taken over, return 202
-        return ResponseEntity.status(HttpStatusCode.valueOf(202)).body(new SuccessfullRequestDto(requestId));
+        return ResponseEntity.status(HttpStatusCode.valueOf(202)).body(new SuccessfulRequestDto(requestId));
     }
 
 }
diff --git a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/PartnerProductStockService.java b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/PartnerProductStockService.java
index bf03b8fc..825fb2a0 100644
--- a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/PartnerProductStockService.java
+++ b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/PartnerProductStockService.java
@@ -38,6 +38,6 @@ public interface PartnerProductStockService {
 
     PartnerProductStock update(PartnerProductStock partnerProductStock);
 
-    List<PartnerProductStock> findAllByMaterialUuidAndPartnerUuid(UUID partnerUuid,
-                                                                  UUID materialUuid);
+    List<PartnerProductStock> findAllByMaterialUuidAndPartnerUuid(UUID materialUuid,
+                                                                  UUID partnerUuid);
 }
diff --git a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/PartnerProductStockServiceImpl.java b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/PartnerProductStockServiceImpl.java
index a0169db0..40a8b284 100644
--- a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/PartnerProductStockServiceImpl.java
+++ b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/PartnerProductStockServiceImpl.java
@@ -64,7 +64,7 @@ public PartnerProductStock update(PartnerProductStock partnerProductStock) {
     }
 
     @Override
-    public List<PartnerProductStock> findAllByMaterialUuidAndPartnerUuid(UUID partnerUuid, UUID materialUuid) {
+    public List<PartnerProductStock> findAllByMaterialUuidAndPartnerUuid(UUID materialUuid, UUID partnerUuid) {
         return partnerProductStockRepository.findAllByMaterial_UuidAndTypeAndSupplierPartner_Uuid(materialUuid, DT_StockTypeEnum.PRODUCT, partnerUuid);
     }
 }
diff --git a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/ProductStockResponseApiServiceImpl.java b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/ProductStockResponseApiServiceImpl.java
index 2b6e47f3..ec23ab3c 100644
--- a/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/ProductStockResponseApiServiceImpl.java
+++ b/backend/src/main/java/org/eclipse/tractusx/puris/backend/stock/logic/service/ProductStockResponseApiServiceImpl.java
@@ -81,9 +81,9 @@ public void consumeResponse(ResponseDto responseDto) {
                 // or whether an update is sufficient.
                 List<PartnerProductStock> existingPartnerProductStocks =
                         partnerProductStockService.findAllByMaterialUuidAndPartnerUuid(
-                                partnerProductStockDto.getSupplierPartner().getUuid(),
-                                partnerProductStockDto.getMaterial().getUuid()
-                        );
+                                partnerProductStockDto.getMaterial().getUuid(),
+                                partnerProductStockDto.getSupplierPartner().getUuid()
+                            );
 
                 // currently we only accept a one to one mapping of partner - material - stock -site
                 // therefore the can only be one PartnerProductStock
@@ -104,8 +104,12 @@ public void consumeResponse(ResponseDto responseDto) {
                     log.info(String.format("Created Partner ProductStock from SAMM: %s",
                             createdPartnerProductStock));
                 } else {
+                    // update quantity only
+                    PartnerProductStock existingPartnerProductStock = existingPartnerProductStocks.get(0);
+                    existingPartnerProductStock.setQuantity(partnerProductStockDto.getQuantity());
+
                     PartnerProductStock updatedPartnerProductStock =
-                            partnerProductStockService.update(existingPartnerProductStocks.get(0));
+                            partnerProductStockService.update(existingPartnerProductStock);
                     log.info(String.format("Updated Partner ProductStock from SAMM: %s",
                             updatedPartnerProductStock));
                 }
diff --git a/frontend/.env b/frontend/.env
index 15dd2485..370ef96a 100644
--- a/frontend/.env
+++ b/frontend/.env
@@ -7,4 +7,4 @@ VITE_ENDPOINT_MATERIAL_STOCKS=stockView/material-stocks
 VITE_ENDPOINT_PRODUCT_STOCKS=stockView/product-stocks
 VITE_ENDPOINT_CUSTOMER=stockView/customer?materialUuid=
 VITE_ENDPOINT_PARTNER_PRODUCT_STOCKS=stockView/partner-product-stocks
-VITE_ENDPOINT_UPDATE_PARTNER_PRODUCT_STOCK=stockView/update-partner-product-stock?materialUuid=
+VITE_ENDPOINT_UPDATE_PARTNER_PRODUCT_STOCK=stockView/update-partner-product-stock?ownMaterialNumber=
diff --git a/frontend/src/views/StockView.vue b/frontend/src/views/StockView.vue
index 360c8c6e..a79cbe49 100644
--- a/frontend/src/views/StockView.vue
+++ b/frontend/src/views/StockView.vue
@@ -180,12 +180,12 @@ export default {
   methods: {
     addOrUpdateStock(changedStock) {
       if (changedStock.type === "Material") {
-        var existingMaterialStock = this.bdMaterialStocks.filter(
+        var existingMaterialStocks = this.bdMaterialStocks.filter(
             (stock) => (stock.material.uuid === changedStock.materialId)
         );
 
-        if (existingMaterialStock.length === 1) { // Update existing material stock
-          var existingMaterialStock = existingMaterialStock[0];
+        if (existingMaterialStocks.length === 1) { // Update existing material stock
+          var existingMaterialStock = existingMaterialStocks[0];
           existingMaterialStock.quantity = changedStock.quantity;
 
           this.putData(this.backendURL + this.endpointMaterialStocks, existingMaterialStock);
diff --git a/frontend/src/views/stock/PartnerStockSFC.vue b/frontend/src/views/stock/PartnerStockSFC.vue
index 2cc18ea9..a8b91c68 100644
--- a/frontend/src/views/stock/PartnerStockSFC.vue
+++ b/frontend/src/views/stock/PartnerStockSFC.vue
@@ -97,7 +97,7 @@ export default {
         .catch(err => console.log(err));
     },
     updateMaterialOrProduct() {
-      fetch(this.backendURL + this.endpointUpdatePartnerProductStock + this.materialUuid)
+      fetch(this.backendURL + this.endpointUpdatePartnerProductStock + this.selectedMaterialOrProductId)
         .then(res => res.json())
         .then(data => console.log(data))
         .catch(err => console.log(err));
diff --git a/frontend/src/views/stock/StockTableSFC.vue b/frontend/src/views/stock/StockTableSFC.vue
index 65eaa98a..ae4a5751 100644
--- a/frontend/src/views/stock/StockTableSFC.vue
+++ b/frontend/src/views/stock/StockTableSFC.vue
@@ -74,6 +74,7 @@ export default {
     return {
       selectedStockId: "",
       selectedStockUuid: "",
+      materialNumberCustomer : ""
     };
   },
   methods: {