diff --git a/docs/source/AdministratorGuide/Systems/WorkloadManagement/JobsMatching.rst b/docs/source/AdministratorGuide/Systems/WorkloadManagement/JobsMatching.rst
index 7a64dd5d54d..23c294610f5 100644
--- a/docs/source/AdministratorGuide/Systems/WorkloadManagement/JobsMatching.rst
+++ b/docs/source/AdministratorGuide/Systems/WorkloadManagement/JobsMatching.rst
@@ -40,7 +40,7 @@ An example of requirements include the following::
 
   JobRequirements =
   [
-    OwnerDN = "/some/DN/";
+    Owner = "user_x";
     VirtualOrganization = "VO";
     Setup = "VO-Certification";
     CPUTime = 17800;
diff --git a/src/DIRAC/WorkloadManagementSystem/DB/TaskQueueDB.py b/src/DIRAC/WorkloadManagementSystem/DB/TaskQueueDB.py
index e013a55cab8..426ead0872e 100755
--- a/src/DIRAC/WorkloadManagementSystem/DB/TaskQueueDB.py
+++ b/src/DIRAC/WorkloadManagementSystem/DB/TaskQueueDB.py
@@ -1,8 +1,8 @@
 """ TaskQueueDB class is a front-end to the task queues db
 """
-from collections import defaultdict
 import random
 import string
+from collections import defaultdict
 from typing import Any
 
 from DIRAC import S_ERROR, S_OK, gConfig
@@ -97,7 +97,6 @@ def __initializeDB(self):
             "Fields": {
                 "TQId": "INTEGER(11) UNSIGNED AUTO_INCREMENT NOT NULL",
                 "Owner": "VARCHAR(255) NOT NULL",
-                "OwnerDN": "VARCHAR(255)",
                 "OwnerGroup": "VARCHAR(32) NOT NULL",
                 "VO": "VARCHAR(32) NOT NULL",
                 "CPUTime": "BIGINT(20) UNSIGNED NOT NULL",
@@ -1151,7 +1150,7 @@ def __setPrioritiesForEntity(self, user, userGroup, share, connObj=False, consol
             res = self._escapeString(user)
             if not res["OK"]:
                 return res
-            userDN = res["Value"]
+            user = res["Value"]
             tqCond.append(f"t.Owner= {user} ")
         tqCond.append("t.TQId = j.TQId")
         if consolidationFunc == "AVG":
diff --git a/src/DIRAC/WorkloadManagementSystem/Service/SandboxStoreHandler.py b/src/DIRAC/WorkloadManagementSystem/Service/SandboxStoreHandler.py
index 64fcc985cad..0c6fb395281 100755
--- a/src/DIRAC/WorkloadManagementSystem/Service/SandboxStoreHandler.py
+++ b/src/DIRAC/WorkloadManagementSystem/Service/SandboxStoreHandler.py
@@ -616,7 +616,7 @@ def __deleteSandboxFromExternalBackend(self, SEName, SEPFN):
                 result = self.sandboxDB.getSandboxOwner(SEName, SEPFN, hostDN, "hosts")
                 if not result["OK"]:
                     return result
-                owner, _ownerDN, ownerGroup = result["Value"]
+                owner, ownerGroup = result["Value"]
 
                 request = Request()
                 request.RequestName = f"RemoteSBDeletion:{SEName}|{SEPFN}:{time.time()}"