diff --git a/server/AyaNova/Controllers/PartController.cs b/server/AyaNova/Controllers/PartController.cs
index 01af5c37..e4dd639c 100644
--- a/server/AyaNova/Controllers/PartController.cs
+++ b/server/AyaNova/Controllers/PartController.cs
@@ -6,6 +6,8 @@ using Microsoft.AspNetCore.Authorization;
 using Microsoft.Extensions.Logging;
 using Microsoft.EntityFrameworkCore;
 using System.Linq;
+using System.Collections.Generic;
+using System;
 using AyaNova.Models;
 using AyaNova.Api.ControllerHelpers;
 using AyaNova.Biz;
@@ -172,6 +174,34 @@ namespace AyaNova.Api.Controllers
             return Ok(ApiOkResponse.Response(o));
         }
 
+        /// <summary>
+        /// Put (update) PartSerials for part
+        /// </summary>        
+        /// <param name="serials">array of serial numbers to replace existing array of part serials</param>
+        ///<param name="id">PartId</param>
+        /// <returns></returns>
+        [HttpPut("serials/{id}")]
+        public async Task<IActionResult> PutPartSerials([FromRoute] long id, [FromBody] List<string> serials)
+        {
+            if (!serverState.IsOpen)
+                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
+            if (!ModelState.IsValid)
+                return BadRequest(new ApiErrorResponse(ModelState));
+            PartBiz biz = PartBiz.GetBiz(ct, HttpContext);
+            if (!Authorized.HasModifyRole(HttpContext.Items, biz.BizType))
+                return StatusCode(403, new ApiNotAuthorizedResponse());
+            var v = await ct.SaveChangesAsync();
+            return Accepted();
+            // var o = await biz.PutAsync(updatedObject);//In future may need to return entire object, for now just concurrency token 
+            // if (o == null)
+            // {
+            //     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(new { Concurrency = o.Concurrency })); ;
+        }
 
         //------------