diff --git a/app/Http/Controllers/Api/V1/TimeEntryController.php b/app/Http/Controllers/Api/V1/TimeEntryController.php
index 243eb3fc..2b49ecf4 100644
--- a/app/Http/Controllers/Api/V1/TimeEntryController.php
+++ b/app/Http/Controllers/Api/V1/TimeEntryController.php
@@ -263,6 +263,10 @@ class TimeEntryController extends Controller
     }
 
     /**
+     * Update multiple time entries
+     *
+     * @operationId updateMultipleTimeEntries
+     *
      * @throws AuthorizationException
      */
     public function updateMultiple(Organization $organization, TimeEntryUpdateMultipleRequest $request): JsonResponse
diff --git a/app/Http/Requests/V1/Client/ClientUpdateRequest.php b/app/Http/Requests/V1/Client/ClientUpdateRequest.php
index 5b035bb5..3ffcf79d 100644
--- a/app/Http/Requests/V1/Client/ClientUpdateRequest.php
+++ b/app/Http/Requests/V1/Client/ClientUpdateRequest.php
@@ -25,6 +25,7 @@ class ClientUpdateRequest extends FormRequest
     public function rules(): array
     {
         return [
+            // Name of the client
             'name' => [
                 'required',
                 'string',
@@ -33,7 +34,7 @@ class ClientUpdateRequest extends FormRequest
                 (new UniqueEloquent(Client::class, 'name', function (Builder $builder): Builder {
                     /** @var Builder<Client> $builder */
                     return $builder->whereBelongsTo($this->organization, 'organization');
-                }))->ignore($this->client->getKey())->withCustomTranslation('validation.client_name_already_exists'),
+                }))->ignore($this->client?->getKey())->withCustomTranslation('validation.client_name_already_exists'),
             ],
             'is_archived' => [
                 'boolean',
diff --git a/app/Http/Requests/V1/Project/ProjectUpdateRequest.php b/app/Http/Requests/V1/Project/ProjectUpdateRequest.php
index 74ad58f6..5772c7d1 100644
--- a/app/Http/Requests/V1/Project/ProjectUpdateRequest.php
+++ b/app/Http/Requests/V1/Project/ProjectUpdateRequest.php
@@ -35,7 +35,7 @@ class ProjectUpdateRequest extends FormRequest
                 (new UniqueEloquent(Project::class, 'name', function (Builder $builder): Builder {
                     /** @var Builder<Project> $builder */
                     return $builder->whereBelongsTo($this->organization, 'organization');
-                }))->ignore($this->project->getKey())->withCustomTranslation('validation.project_name_already_exists'),
+                }))->ignore($this->project?->getKey())->withCustomTranslation('validation.project_name_already_exists'),
             ],
             'color' => [
                 'required',
diff --git a/app/Http/Requests/V1/Tag/TagUpdateRequest.php b/app/Http/Requests/V1/Tag/TagUpdateRequest.php
index 52c939e8..17b86e1c 100644
--- a/app/Http/Requests/V1/Tag/TagUpdateRequest.php
+++ b/app/Http/Requests/V1/Tag/TagUpdateRequest.php
@@ -33,7 +33,7 @@ class TagUpdateRequest extends FormRequest
                 (new UniqueEloquent(Tag::class, 'name', function (Builder $builder): Builder {
                     /** @var Builder<Tag> $builder */
                     return $builder->whereBelongsTo($this->organization, 'organization');
-                }))->ignore($this->tag->getKey())->withCustomTranslation('validation.tag_name_already_exists'),
+                }))->ignore($this->tag?->getKey())->withCustomTranslation('validation.tag_name_already_exists'),
             ],
         ];
     }
diff --git a/app/Http/Requests/V1/Task/TaskUpdateRequest.php b/app/Http/Requests/V1/Task/TaskUpdateRequest.php
index 9f79e395..94fc02d5 100644
--- a/app/Http/Requests/V1/Task/TaskUpdateRequest.php
+++ b/app/Http/Requests/V1/Task/TaskUpdateRequest.php
@@ -33,7 +33,7 @@ class TaskUpdateRequest extends FormRequest
                 (new UniqueEloquent(Task::class, 'name', function (Builder $builder): Builder {
                     /** @var Builder<Task> $builder */
                     return $builder->where('project_id', '=', $this->task->project_id);
-                }))->ignore($this->task->getKey())->withCustomTranslation('validation.task_name_already_exists'),
+                }))->ignore($this->task?->getKey())->withCustomTranslation('validation.task_name_already_exists'),
             ],
             'is_done' => [
                 'boolean',