diff --git a/server/AyaNova/Controllers/TagController.cs b/server/AyaNova/Controllers/TagController.cs
index dfd7fd6f..e3f46ebd 100644
--- a/server/AyaNova/Controllers/TagController.cs
+++ b/server/AyaNova/Controllers/TagController.cs
@@ -200,6 +200,7 @@ namespace AyaNova.Api.Controllers
             return Accepted(new { JobId = j.GId });
         }
 
+
         /// <summary>
         /// Bulk remove tags to all objects of type specified
         /// </summary>
@@ -240,6 +241,7 @@ namespace AyaNova.Api.Controllers
             return Accepted(new { JobId = j.GId });
         }
 
+
         /// <summary>
         /// Bulk replace tags to list of object id's specified
         /// </summary>
@@ -251,7 +253,40 @@ namespace AyaNova.Api.Controllers
         [HttpPost("bulk-replace/{ayaType}/{tag}")]
         public async Task<IActionResult> BulkReplace([FromRoute] AyaType ayaType, [FromRoute] string fromTag, [FromQuery] string toTag, [FromBody] List<long> idList)
         {
+            if (!serverState.IsOpen)
+                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
+            if (!ModelState.IsValid)
+                return BadRequest(new ApiErrorResponse(ModelState));
+            if (!ayaType.HasAttribute(typeof(CoreBizObjectAttribute)))
+                return BadRequest(new ApiErrorResponse(ApiErrorCode.INVALID_OPERATION, "ayaType", "Not a taggable object type"));
+            if (!Authorized.HasModifyRole(HttpContext.Items, ayaType))
+                return StatusCode(403, new ApiNotAuthorizedResponse());
+            if (idList.Count == 0)
+                return BadRequest(new ApiErrorResponse(ApiErrorCode.VALIDATION_REQUIRED, "List of ids"));
+            fromTag = TagUtil.NormalizeTag(fromTag);
+            if (string.IsNullOrWhiteSpace(fromTag))
+                return BadRequest(new ApiErrorResponse(ApiErrorCode.VALIDATION_REQUIRED, "fromTag"));
+            toTag = TagUtil.NormalizeTag(toTag);
+            if (string.IsNullOrWhiteSpace(toTag))
+                return BadRequest(new ApiErrorResponse(ApiErrorCode.VALIDATION_REQUIRED, "toTag"));
+            var JobName = $"BulkReplace tag \"{fromTag}\" with tag \"{toTag}\" to {ayaType} ({idList.Count} specified)";
+            JObject o = JObject.FromObject(new
+            {
+                ayaType = ayaType,
+                idList = idList,
+                op = "bulk-replace",
+                fromTag = fromTag,
+                toTag = toTag
+            });
 
+            OpsJob j = new OpsJob();
+            j.Name = JobName;
+            j.JobType = JobType.BulkTag;
+            j.Exclusive = false;
+            j.JobInfo = o.ToString();
+            await JobsBiz.AddJobAsync(j, ct);
+            await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserIdFromContext.Id(HttpContext.Items), 0, AyaType.ServerJob, AyaEvent.Created, JobName), ct);
+            return Accepted(new { JobId = j.GId });
         }
 
         /// <summary>