diff --git a/src/pages/Courses/Admin/Assignamment.vue b/src/pages/Courses/Admin/Assignamment.vue
index cbc3653..1c9b298 100644
--- a/src/pages/Courses/Admin/Assignamment.vue
+++ b/src/pages/Courses/Admin/Assignamment.vue
@@ -63,7 +63,7 @@ watch(() => form.start_date, () => {
 const submit = () => {
   form.transform(data => ({
     ...data,
-    users: form.users = users.value.map(u => u.id)
+    users: users.value.filter(u => u.selected).map(u => u.id)
   })).post(apiTo('assign-course', { course: vroute.params.id }), {
     onSuccess: () => {
       Notify.success(Lang('register.assign.onSuccess'))
@@ -77,12 +77,7 @@ onMounted(() => {
   api.get(apiTo('show', { course: vroute.params.id }), {
     onSuccess: (r) => {
       course.value = r.course
-
-      api.catalog({
-        'user:byDepartment': r.course.department?.id || null
-      }, {
-        onSuccess: (r) => users.value = r['user:byDepartment'] ?? []
-      });
+      users.value = r.course.users ?? []
     }
   });
 });
diff --git a/src/pages/Courses/Coordinator/Request.vue b/src/pages/Courses/Coordinator/Request.vue
index 7051e96..ff1c3ad 100644
--- a/src/pages/Courses/Coordinator/Request.vue
+++ b/src/pages/Courses/Coordinator/Request.vue
@@ -45,7 +45,7 @@ function submit() {
     ...data,
     department_id: form.department_id?.id,
     cost_currency: form.cost_currency?.id,
-    users: form.users = users.value.map(u => u.id)
+    users: users.value.filter(u => u.selected).map(u => u.id)
   })).post(apiTo('store'), {
     onSuccess: () => {
       Notify.success(Lang('register.create.onSuccess'))
@@ -97,12 +97,12 @@ onMounted(() => {
     title="Solicitud de Nuevo Curso"
   >
     <RouterLink :to="viewTo({ name: 'index' })">
-        <IconButton
-            class="text-white"
-            icon="arrow_back"
-            :title="$t('return')"
-            filled
-        />
+      <IconButton
+        class="text-white"
+        icon="arrow_back"
+        :title="$t('return')"
+        filled
+      />
     </RouterLink>
   </PageHeader>
   
@@ -183,6 +183,7 @@ onMounted(() => {
              :onError="form.errors.duration"
              type="number"
              min="1"
+             required
            />
            <Input
              v-model="form.url"