diff --git a/server/AyaNova/Controllers/PartController.cs b/server/AyaNova/Controllers/PartController.cs
index 0d826065..51d27d7d 100644
--- a/server/AyaNova/Controllers/PartController.cs
+++ b/server/AyaNova/Controllers/PartController.cs
@@ -265,7 +265,7 @@ namespace AyaNova.Api.Controllers
         ///<param name="id">PartId</param>
         /// <returns></returns>
         [HttpPut("part-cost/{id}")]
-        public async Task<IActionResult> PutPartSerials([FromRoute] long id, [FromBody] decimal newCost)
+        public async Task<IActionResult> PutPartCost([FromRoute] long id, [FromBody] decimal newCost)
         {
             if (!serverState.IsOpen)
                 return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
@@ -274,18 +274,15 @@ namespace AyaNova.Api.Controllers
             PartBiz biz = PartBiz.GetBiz(ct, HttpContext);
             if (!Authorized.HasModifyRole(HttpContext.Items, biz.BizType))
                 return StatusCode(403, new ApiNotAuthorizedResponse());
-
-
-            var o = await biz.PutPartCostAsync(id, newCost);
-            if (o == null)
+           
+            if (await biz.PutPartCostAsync(id, newCost) == false)
             {
                 if (biz.Errors.Exists(z => z.Code == ApiErrorCode.CONCURRENCY_CONFLICT))
                     return StatusCode(409, new ApiErrorResponse(biz.Errors));
                 else
                     return BadRequest(new ApiErrorResponse(biz.Errors));
             }
-
-            return Ok(ApiOkResponse.Response(o));
+            return NoContent();
         }
 
 
diff --git a/server/AyaNova/biz/PartBiz.cs b/server/AyaNova/biz/PartBiz.cs
index 9ef8db17..8f38809d 100644
--- a/server/AyaNova/biz/PartBiz.cs
+++ b/server/AyaNova/biz/PartBiz.cs
@@ -348,6 +348,37 @@ namespace AyaNova.Biz
             return ret;
         }
 
+        ////////////////////////////////////////////////////////////////////////////////////////////////
+        //UPDATE PART COST
+        //
+        internal async Task<bool> PutPartCostAsync(long id, decimal newCost)
+        {
+            var dbObject = await ct.Part.FirstOrDefaultAsync(x => x.Id == id);
+            if (dbObject == null)
+            {
+                AddError(ApiErrorCode.NOT_FOUND, "id");
+                return false;
+            }
+            dbObject.Cost = newCost;
+            try
+            {
+                await ct.SaveChangesAsync();
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!await ExistsAsync(id))
+                    AddError(ApiErrorCode.NOT_FOUND);
+                else
+                    AddError(ApiErrorCode.CONCURRENCY_CONFLICT);
+                return false;
+            }
+            await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, dbObject.Id, BizType, AyaEvent.Modified), ct);
+            return true;
+        }
+
+
+
+
         ////////////////////////////////////////////////////////////////////////////////////////////////
         //SEARCH
         //