diff --git a/apiserver/apimodels/batch.py b/apiserver/apimodels/batch.py
index 01a1402..5863f1d 100644
--- a/apiserver/apimodels/batch.py
+++ b/apiserver/apimodels/batch.py
@@ -3,7 +3,7 @@ from typing import Sequence
 from jsonmodels.models import Base
 from jsonmodels.validators import Length
 
-from apiserver.apimodels import ListField
+from apiserver.apimodels import ListField, IntField
 
 
 class BatchRequest(Base):
@@ -11,4 +11,5 @@ class BatchRequest(Base):
 
 
 class BatchResponse(Base):
+    succeeded: int = IntField()
     failures: Sequence[dict] = ListField([dict])
diff --git a/apiserver/apimodels/models.py b/apiserver/apimodels/models.py
index 30a0971..9e9ad6a 100644
--- a/apiserver/apimodels/models.py
+++ b/apiserver/apimodels/models.py
@@ -55,12 +55,7 @@ class ModelsArchiveManyRequest(BatchRequest):
     pass
 
 
-class ModelsArchiveManyResponse(BatchResponse):
-    archived = fields.IntField(required=True)
-
-
 class ModelsDeleteManyResponse(BatchResponse):
-    deleted = fields.IntField()
     urls = fields.ListField([str])
 
 
@@ -84,7 +79,6 @@ class ModelsPublishManyRequest(BatchRequest):
 
 
 class ModelsPublishManyResponse(BatchResponse):
-    published = fields.IntField(required=True)
     published_tasks = fields.ListField([ModelTaskPublishResponse])
 
 
diff --git a/apiserver/apimodels/tasks.py b/apiserver/apimodels/tasks.py
index 780f8ac..f0020c0 100644
--- a/apiserver/apimodels/tasks.py
+++ b/apiserver/apimodels/tasks.py
@@ -7,7 +7,7 @@ from jsonmodels.validators import Enum, Length
 
 from apiserver.apimodels import DictField, ListField
 from apiserver.apimodels.base import UpdateResponse
-from apiserver.apimodels.batch import BatchRequest, BatchResponse
+from apiserver.apimodels.batch import BatchRequest
 from apiserver.database.model.task.task import (
     TaskType,
     ArtifactModes,
@@ -241,26 +241,14 @@ class StopManyRequest(TaskBatchRequest):
     force = BoolField(default=False)
 
 
-class StopManyResponse(BatchResponse):
-    stopped = IntField(required=True)
-
-
 class ArchiveManyRequest(TaskBatchRequest):
     pass
 
 
-class ArchiveManyResponse(BatchResponse):
-    archived = IntField(required=True)
-
-
 class EnqueueManyRequest(TaskBatchRequest):
     queue = StringField()
 
 
-class EnqueueManyResponse(BatchResponse):
-    queued = IntField()
-
-
 class DeleteManyRequest(TaskBatchRequest):
     move_to_trash = BoolField(default=True)
     return_file_urls = BoolField(default=False)
diff --git a/apiserver/bll/task/utils.py b/apiserver/bll/task/utils.py
index a3d7625..bb18be9 100644
--- a/apiserver/bll/task/utils.py
+++ b/apiserver/bll/task/utils.py
@@ -106,7 +106,7 @@ def validate_status_change(current_status, new_status):
 
 state_machine = {
     TaskStatus.created: {TaskStatus.queued, TaskStatus.in_progress},
-    TaskStatus.queued: {TaskStatus.created, TaskStatus.in_progress},
+    TaskStatus.queued: {TaskStatus.created, TaskStatus.in_progress, TaskStatus.stopped},
     TaskStatus.in_progress: {
         TaskStatus.stopped,
         TaskStatus.failed,
diff --git a/apiserver/mongo/migrations/0_18_0.py b/apiserver/mongo/migrations/0_18_0.py
index 4e95594..0af0dd4 100644
--- a/apiserver/mongo/migrations/0_18_0.py
+++ b/apiserver/mongo/migrations/0_18_0.py
@@ -1,7 +1,10 @@
+import os
+import re
 from datetime import datetime
 
 from pymongo.collection import Collection
 from pymongo.database import Database
+from pymongo.errors import DuplicateKeyError
 
 from apiserver.database.model.task.task import TaskModelTypes, TaskModelNames
 from apiserver.services.utils import escape_dict
@@ -94,8 +97,39 @@ def _migrate_model_labels(db: Database):
             tasks.update_one({"_id": doc["_id"]}, {"$set": set_commands})
 
 
+def _migrate_project_names(db: Database):
+    projects: Collection = db["project"]
+
+    regx = re.compile("/", re.IGNORECASE)
+    for doc in projects.find(filter={"name": regx, "path": {"$in": [None, []]}}):
+        name = doc.get("name")
+        if not name:
+            continue
+
+        max_tries = int(os.getenv("CLEARML_MIGRATION_PROJECT_RENAME_MAX_TRIES", 10))
+        iteration = 0
+        for iteration in range(max_tries):
+            new_name = name.replace("/", "_" * (iteration + 1))
+            try:
+                projects.update_one(
+                    {"_id": doc["_id"]},
+                    {
+                        "$set": {"name": new_name}
+                    }
+                )
+                break
+            except DuplicateKeyError:
+                pass
+
+        if iteration >= max_tries - 1:
+            print(
+                f"Could not upgrade the name {name} of the project {doc.get('_id')}"
+            )
+
+
 def migrate_backend(db: Database):
     _migrate_task_models(db)
     _migrate_docker_cmd(db)
     _migrate_model_labels(db)
+    _migrate_project_names(db)
     _drop_all_indices_from_collections(db, ["task*"])
diff --git a/apiserver/schema/services/_common.conf b/apiserver/schema/services/_common.conf
index fc818a0..cdec1c6 100644
--- a/apiserver/schema/services/_common.conf
+++ b/apiserver/schema/services/_common.conf
@@ -37,7 +37,6 @@ batch_operation {
         required: [ids]
         properties {
             ids {
-                description: Entities to move
                 type: array
                 items {type: string}
             }
@@ -46,6 +45,9 @@ batch_operation {
     response {
         type: object
         properties {
+            succeeded {
+                type: integer
+            }
             failures {
                 type: array
                 items {
diff --git a/apiserver/schema/services/models.conf b/apiserver/schema/services/models.conf
index f7e692c..1fdef75 100644
--- a/apiserver/schema/services/models.conf
+++ b/apiserver/schema/services/models.conf
@@ -658,21 +658,21 @@ publish_many {
     "2.13": ${_definitions.batch_operation} {
         description: Publish models
         request {
-            force_publish_task {
-                description: "Publish the associated tasks (if exist) even if they are not in the 'stopped' state. Optional, the default value is False."
-                type: boolean
-            }
-            publish_tasks {
-                description: "Indicates that the associated tasks (if exist) should be published. Optional, the default value is True."
-                type: boolean
+            properties {
+                ids.description: "IDs of models to publish"
+                force_publish_task {
+                    description: "Publish the associated tasks (if exist) even if they are not in the 'stopped' state. Optional, the default value is False."
+                    type: boolean
+                }
+                publish_tasks {
+                    description: "Indicates that the associated tasks (if exist) should be published. Optional, the default value is True."
+                    type: boolean
+                }
             }
         }
         response {
             properties {
-                published {
-                    description: "Number of models published"
-                    type: integer
-                }
+                succeeded.description: "Number of models published"
                 published_tasks {
                     type: array
                     items: ${_definitions.published_task_item}
@@ -718,12 +718,14 @@ set_ready {
 archive_many {
     "2.13": ${_definitions.batch_operation} {
         description: Archive models
+        request {
+            properties {
+                ids.description: "IDs of models to archive"
+            }
+        }
         response {
             properties {
-                archived {
-                    description: "Number of models archived"
-                    type: integer
-                }
+                succeeded.description: "Number of models archived"
             }
         }
     }
@@ -732,18 +734,18 @@ delete_many {
     "2.13": ${_definitions.batch_operation} {
         description: Delete models
         request {
-            force {
-                description: """Force. Required if there are tasks that use the model as an execution model, or if the model's creating task is published.
+            properties {
+                ids.description: "IDs of models to delete"
+                force {
+                    description: """Force. Required if there are tasks that use the model as an execution model, or if the model's creating task is published.
                 """
-                type: boolean
+                    type: boolean
+                }
             }
         }
         response {
             properties {
-                deleted {
-                    description: "Number of models deleted"
-                    type: integer
-                }
+                succeeded.description: "Number of models deleted"
                 urls {
                     descrition: "The urls of the deleted model files"
                     type: array
diff --git a/apiserver/schema/services/tasks.conf b/apiserver/schema/services/tasks.conf
index e7491e5..69a65ab 100644
--- a/apiserver/schema/services/tasks.conf
+++ b/apiserver/schema/services/tasks.conf
@@ -1421,6 +1421,7 @@ reset_many {
         description: Reset tasks
         request {
             properties {
+                ids.description: "IDs of the tasks to reset"
                 force = ${_references.force_arg} {
                     description: "If not true, call fails if the task status is 'completed'"
                 }
@@ -1441,10 +1442,7 @@ reset_many {
         }
         response {
             properties {
-                reset {
-                    description: "Number of tasks reset"
-                    type: integer
-                }
+                succeeded.description: "Number of tasks reset"
                 dequeued {
                     description: "Number of tasks dequeued"
                     type: object
@@ -1467,6 +1465,7 @@ delete_many {
         description: Delete tasks
         request {
             properties {
+                ids.description: "IDs of the tasks to delete"
                 move_to_trash {
                     description: "Move task to trash instead of deleting it. For internal use only, tasks in the trash are not visible from the API and cannot be restored!"
                     type: boolean
@@ -1487,10 +1486,7 @@ delete_many {
         }
         response {
             properties {
-                deleted {
-                    description: "Number of tasks deleted"
-                    type: integer
-                }
+                succeeded.description: "Number of tasks deleted"
                 updated_children {
                     description: "Number of child tasks whose parent property was updated"
                     type: integer
@@ -1615,11 +1611,13 @@ archive {
 archive_many {
     "2.13": ${_definitions.change_many_request} {
         description: Archive tasks
+        request {
+            properties {
+                ids.description: "IDs of the tasks to archive"
+            }
         response {
             properties {
-                archived {
-                    description: "Number of tasks archived"
-                    type: integer
+                succeeded.description: "Number of tasks archived"
                 }
             }
         }
@@ -1668,6 +1666,7 @@ stop_many {
         description: "Request to stop running tasks"
         request {
             properties {
+                ids.description: "IDs of the tasks to stop"
                 force = ${_references.force_arg} {
                     description: "If not true, call fails if the task status is not 'in_progress'"
                 }
@@ -1675,10 +1674,7 @@ stop_many {
         }
         response {
             properties {
-                stopped {
-                    description: "Number of tasks stopped"
-                    type: integer
-                }
+                succeeded.description: "Number of tasks stopped"
             }
         }
     }
@@ -1754,6 +1750,7 @@ publish_many {
         description: Publish tasks
         request {
             properties {
+                ids.description: "IDs of the tasks to publish"
                 force = ${_references.force_arg} {
                     description: "If not true, call fails if the task status is not 'stopped'"
                 }
@@ -1765,10 +1762,7 @@ publish_many {
         }
         response {
             properties {
-                published {
-                    description: "Number of tasks published"
-                    type: integer
-                }
+                succeeded.description: "Number of tasks published"
             }
         }
     }
@@ -1812,12 +1806,18 @@ Fails if the following parameters in the task were not filled:
 enqueue_many {
     "2.13": ${_definitions.change_many_request} {
         description: Enqueue tasks
+        request {
+            properties {
+                ids.description: "IDs of the tasks to enqueue"
+                queue {
+                    description: "Queue id. If not provided, tasks are added to the default queue."
+                    type: string
+                }
+            }
+        }
         response {
             properties {
-                enqueued {
-                    description: "Number of tasks enqueued"
-                    type: integer
-                }
+                succeeded.description: "Number of tasks enqueued"
             }
         }
     }
diff --git a/apiserver/services/models.py b/apiserver/services/models.py
index 3b7fa9b..0b650be 100644
--- a/apiserver/services/models.py
+++ b/apiserver/services/models.py
@@ -9,6 +9,7 @@ from apiserver import database
 from apiserver.apierrors import errors
 from apiserver.apierrors.errors.bad_request import InvalidModelId
 from apiserver.apimodels.base import UpdateResponse, MakePublicRequest, MoveRequest
+from apiserver.apimodels.batch import BatchResponse
 from apiserver.apimodels.models import (
     CreateModelRequest,
     CreateModelResponse,
@@ -24,7 +25,6 @@ from apiserver.apimodels.models import (
     ModelsDeleteManyRequest,
     ModelsDeleteManyResponse,
     ModelsArchiveManyRequest,
-    ModelsArchiveManyResponse,
 )
 from apiserver.bll.model import ModelBLL
 from apiserver.bll.organization import OrgBLL, Tags
@@ -533,7 +533,7 @@ def publish_many(call: APICall, company_id, request: ModelsPublishManyRequest):
     )
 
     call.result.data_model = ModelsPublishManyResponse(
-        published=res.published, published_tasks=res.published_tasks, failures=failures,
+        succeeded=res.published, published_tasks=res.published_tasks, failures=failures,
     )
 
 
@@ -581,14 +581,14 @@ def delete(call: APICall, company_id, request: ModelsDeleteManyRequest):
 
     res.urls.discard(None)
     call.result.data_model = ModelsDeleteManyResponse(
-        deleted=res.deleted, urls=list(res.urls), failures=failures,
+        succeeded=res.deleted, urls=list(res.urls), failures=failures,
     )
 
 
 @endpoint(
     "models.archive_many",
     request_data_model=ModelsArchiveManyRequest,
-    response_data_model=ModelsArchiveManyResponse,
+    response_data_model=BatchResponse,
 )
 def archive_many(call: APICall, company_id, request: ModelsArchiveManyRequest):
     archived, failures = run_batch_operation(
@@ -596,9 +596,7 @@ def archive_many(call: APICall, company_id, request: ModelsArchiveManyRequest):
         ids=request.ids,
         init_res=0,
     )
-    call.result.data_model = ModelsArchiveManyResponse(
-        archived=archived, failures=failures,
-    )
+    call.result.data_model = BatchResponse(succeeded=archived, failures=failures)
 
 
 @endpoint("models.make_public", min_version="2.9", request_data_model=MakePublicRequest)
diff --git a/apiserver/services/tasks.py b/apiserver/services/tasks.py
index d76d21e..e7a72bf 100644
--- a/apiserver/services/tasks.py
+++ b/apiserver/services/tasks.py
@@ -17,6 +17,7 @@ from apiserver.apimodels.base import (
     MakePublicRequest,
     MoveRequest,
 )
+from apiserver.apimodels.batch import BatchResponse
 from apiserver.apimodels.tasks import (
     StartedResponse,
     ResetResponse,
@@ -47,13 +48,10 @@ from apiserver.apimodels.tasks import (
     ArchiveRequest,
     AddUpdateModelRequest,
     DeleteModelsRequest,
-    StopManyResponse,
     StopManyRequest,
     EnqueueManyRequest,
-    EnqueueManyResponse,
     ResetManyRequest,
     ArchiveManyRequest,
-    ArchiveManyResponse,
     DeleteManyRequest,
     PublishManyRequest,
 )
@@ -299,7 +297,7 @@ class StopRes:
 @endpoint(
     "tasks.stop_many",
     request_data_model=StopManyRequest,
-    response_data_model=StopManyResponse,
+    response_data_model=BatchResponse,
 )
 def stop_many(call: APICall, company_id, request: StopManyRequest):
     res, failures = run_batch_operation(
@@ -313,7 +311,7 @@ def stop_many(call: APICall, company_id, request: StopManyRequest):
         ids=request.ids,
         init_res=StopRes(),
     )
-    call.result.data_model = StopManyResponse(stopped=res.stopped, failures=failures)
+    call.result.data_model = BatchResponse(succeeded=res.stopped, failures=failures)
 
 
 @endpoint(
@@ -867,7 +865,7 @@ class EnqueueRes:
 @endpoint(
     "tasks.enqueue_many",
     request_data_model=EnqueueManyRequest,
-    response_data_model=EnqueueManyResponse,
+    response_data_model=BatchResponse,
 )
 def enqueue_many(call: APICall, company_id, request: EnqueueManyRequest):
     res, failures = run_batch_operation(
@@ -881,7 +879,7 @@ def enqueue_many(call: APICall, company_id, request: EnqueueManyRequest):
         ids=request.ids,
         init_res=EnqueueRes(),
     )
-    call.result.data_model = EnqueueManyResponse(queued=res.queued, failures=failures)
+    call.result.data_model = BatchResponse(succeeded=res.queued, failures=failures)
 
 
 @endpoint(
@@ -971,7 +969,7 @@ def reset_many(call: APICall, company_id, request: ResetManyRequest):
     else:
         cleanup_res = {}
     call.result.data = dict(
-        reset=res.reset, dequeued=res.dequeued, **cleanup_res, failures=failures,
+        succeeded=res.reset, dequeued=res.dequeued, **cleanup_res, failures=failures,
     )
 
 
@@ -1001,7 +999,7 @@ def archive(call: APICall, company_id, request: ArchiveRequest):
 @endpoint(
     "tasks.archive_many",
     request_data_model=ArchiveManyRequest,
-    response_data_model=ArchiveManyResponse,
+    response_data_model=BatchResponse,
 )
 def archive_many(call: APICall, company_id, request: ArchiveManyRequest):
     archived, failures = run_batch_operation(
@@ -1014,7 +1012,7 @@ def archive_many(call: APICall, company_id, request: ArchiveManyRequest):
         ids=request.ids,
         init_res=0,
     )
-    call.result.data_model = ArchiveManyResponse(archived=archived, failures=failures)
+    call.result.data_model = BatchResponse(succeeded=archived, failures=failures)
 
 
 @endpoint("tasks.delete", request_data_model=DeleteRequest)
@@ -1067,7 +1065,7 @@ def delete_many(call: APICall, company_id, request: DeleteManyRequest):
         _reset_cached_tags(company_id, projects=list(res.projects))
 
     cleanup_res = attr.asdict(res.cleanup_res) if res.cleanup_res else {}
-    call.result.data = dict(deleted=res.deleted, **cleanup_res, failures=failures)
+    call.result.data = dict(succeeded=res.deleted, **cleanup_res, failures=failures)
 
 
 @endpoint(
@@ -1095,7 +1093,11 @@ class PublishRes:
         return PublishRes(published=self.published + 1)
 
 
-@endpoint("tasks.publish_many", request_data_model=PublishManyRequest)
+@endpoint(
+    "tasks.publish_many",
+    request_data_model=PublishManyRequest,
+    response_data_model=BatchResponse,
+)
 def publish_many(call: APICall, company_id, request: PublishManyRequest):
     res, failures = run_batch_operation(
         func=partial(
@@ -1112,7 +1114,7 @@ def publish_many(call: APICall, company_id, request: PublishManyRequest):
         init_res=PublishRes(),
     )
 
-    call.result.data = dict(published=res.published, failures=failures)
+    call.result.data_model = BatchResponse(succeeded=res.published, failures=failures)
 
 
 @endpoint(
diff --git a/apiserver/tests/automated/test_batch_operations.py b/apiserver/tests/automated/test_batch_operations.py
index 9f4f909..dec1421 100644
--- a/apiserver/tests/automated/test_batch_operations.py
+++ b/apiserver/tests/automated/test_batch_operations.py
@@ -21,7 +21,7 @@ class TestBatchOperations(TestService):
 
         # enqueue
         res = self.api.tasks.enqueue_many(ids=ids)
-        self.assertEqual(res.queued, 2)
+        self.assertEqual(res.succeeded, 2)
         self._assert_failures(res, [missing_id])
         data = self.api.tasks.get_all_ex(id=ids).tasks
         self.assertEqual({t.status for t in data}, {"queued"})
@@ -30,14 +30,14 @@ class TestBatchOperations(TestService):
         for t in tasks:
             self.api.tasks.started(task=t)
         res = self.api.tasks.stop_many(ids=ids)
-        self.assertEqual(res.stopped, 2)
+        self.assertEqual(res.succeeded, 2)
         self._assert_failures(res, [missing_id])
         data = self.api.tasks.get_all_ex(id=ids).tasks
         self.assertEqual({t.status for t in data}, {"stopped"})
 
         # publish
         res = self.api.tasks.publish_many(ids=ids, publish_model=False)
-        self.assertEqual(res.published, 2)
+        self.assertEqual(res.succeeded, 2)
         self._assert_failures(res, [missing_id])
         data = self.api.tasks.get_all_ex(id=ids).tasks
         self.assertEqual({t.status for t in data}, {"published"})
@@ -46,7 +46,7 @@ class TestBatchOperations(TestService):
         res = self.api.tasks.reset_many(
             ids=ids, delete_output_models=True, return_file_urls=True, force=True
         )
-        self.assertEqual(res.reset, 2)
+        self.assertEqual(res.succeeded, 2)
         self.assertEqual(res.deleted_models, 2)
         self.assertEqual(set(res.urls.model_urls), {"uri_0", "uri_1"})
         self._assert_failures(res, [missing_id])
@@ -55,7 +55,7 @@ class TestBatchOperations(TestService):
 
         # archive
         res = self.api.tasks.archive_many(ids=ids)
-        self.assertEqual(res.archived, 2)
+        self.assertEqual(res.succeeded, 2)
         self._assert_failures(res, [missing_id])
         data = self.api.tasks.get_all_ex(id=ids).tasks
         self.assertTrue(all("archived" in t.system_tags for t in data))
@@ -64,7 +64,7 @@ class TestBatchOperations(TestService):
         res = self.api.tasks.delete_many(
             ids=ids, delete_output_models=True, return_file_urls=True
         )
-        self.assertEqual(res.deleted, 2)
+        self.assertEqual(res.succeeded, 2)
         self._assert_failures(res, [missing_id])
         data = self.api.tasks.get_all_ex(id=ids).tasks
         self.assertEqual(data, [])
@@ -84,13 +84,13 @@ class TestBatchOperations(TestService):
         res = self.api.models.publish_many(
             ids=ids, publish_task=True, force_publish_task=True
         )
-        self.assertEqual(res.published, 1)
+        self.assertEqual(res.succeeded, 1)
         self.assertEqual(res.published_tasks[0].id, task)
         self._assert_failures(res, [ids[1], missing_id])
 
         # archive
         res = self.api.models.archive_many(ids=ids)
-        self.assertEqual(res.archived, 2)
+        self.assertEqual(res.succeeded, 2)
         self._assert_failures(res, [missing_id])
         data = self.api.models.get_all_ex(id=ids).models
         for m in data:
@@ -98,7 +98,7 @@ class TestBatchOperations(TestService):
 
         # delete
         res = self.api.models.delete_many(ids=[*models, missing_id], force=True)
-        self.assertEqual(res.deleted, 2)
+        self.assertEqual(res.succeeded, 2)
         self.assertEqual(set(res.urls), set(uris))
         self._assert_failures(res, [missing_id])
         data = self.api.models.get_all_ex(id=ids).models