diff --git a/app/react/kubernetes/configs/queries/useUpdateK8sConfigMapMutation.ts b/app/react/kubernetes/configs/queries/useUpdateK8sConfigMapMutation.ts
index 789e8a3a1..d91781658 100644
--- a/app/react/kubernetes/configs/queries/useUpdateK8sConfigMapMutation.ts
+++ b/app/react/kubernetes/configs/queries/useUpdateK8sConfigMapMutation.ts
@@ -19,12 +19,27 @@ export function useUpdateK8sConfigMapMutation(
   const queryClient = useQueryClient();
   return useMutation({
     mutationFn: ({
-      data,
+      configMap,
       configMapName,
     }: {
-      data: ConfigMap;
+      configMap: ConfigMap;
       configMapName: string;
-    }) => updateConfigMap(environmentId, namespace, configMapName, data),
+    }) => {
+      if (!configMap.metadata?.uid) {
+        return createConfigMap(
+          environmentId,
+          namespace,
+          configMapName,
+          configMap
+        );
+      }
+      return updateConfigMap(
+        environmentId,
+        namespace,
+        configMapName,
+        configMap
+      );
+    },
     ...withInvalidate(queryClient, [
       configMapQueryKeys.configMaps(environmentId, namespace),
     ]),
@@ -50,3 +65,22 @@ async function updateConfigMap(
     );
   }
 }
+
+function createConfigMap(
+  environmentId: EnvironmentId,
+  namespace: string,
+  configMap: string,
+  data: ConfigMap
+) {
+  try {
+    return axios.post(
+      `/endpoints/${environmentId}/kubernetes/api/v1/namespaces/${namespace}/configmaps`,
+      data
+    );
+  } catch (e) {
+    throw parseKubernetesAxiosError(
+      e,
+      `Unable to create ConfigMap '${configMap}'`
+    );
+  }
+}
diff --git a/app/react/kubernetes/namespaces/AccessView/AccessDatatable/AccessDatatable.tsx b/app/react/kubernetes/namespaces/AccessView/AccessDatatable/AccessDatatable.tsx
index c30a06a31..965348097 100644
--- a/app/react/kubernetes/namespaces/AccessView/AccessDatatable/AccessDatatable.tsx
+++ b/app/react/kubernetes/namespaces/AccessView/AccessDatatable/AccessDatatable.tsx
@@ -95,7 +95,7 @@ export function AccessDatatable() {
         configMap
       );
       await updateConfigMapMutation.mutateAsync({
-        data: configMapPayload,
+        configMap: configMapPayload,
         configMapName: PortainerNamespaceAccessesConfigMap.configMapName,
       });
       notifySuccess('Success', 'Namespace access updated');
diff --git a/app/react/kubernetes/namespaces/AccessView/CreateAccessWidget/CreateAccessWidget.tsx b/app/react/kubernetes/namespaces/AccessView/CreateAccessWidget/CreateAccessWidget.tsx
index 3625d373e..032fcb1e5 100644
--- a/app/react/kubernetes/namespaces/AccessView/CreateAccessWidget/CreateAccessWidget.tsx
+++ b/app/react/kubernetes/namespaces/AccessView/CreateAccessWidget/CreateAccessWidget.tsx
@@ -12,6 +12,8 @@ import { useConfigMap } from '@/react/kubernetes/configs/queries/useConfigMap';
 import { useTeams } from '@/react/portainer/users/teams/queries';
 import { useUpdateK8sConfigMapMutation } from '@/react/kubernetes/configs/queries/useUpdateK8sConfigMapMutation';
 import { notifyError, notifySuccess } from '@/portainer/services/notifications';
+import { Configuration } from '@/react/kubernetes/configs/types';
+import { useCurrentUser } from '@/react/hooks/useUser';
 
 import { Widget, WidgetBody, WidgetTitle } from '@@/Widget';
 import { TextTip } from '@@/Tip/TextTip';
@@ -28,6 +30,7 @@ export function CreateAccessWidget() {
   const {
     params: { id: namespaceName },
   } = useCurrentStateAndParams();
+  const { user } = useCurrentUser();
   const environmentId = useEnvironmentId();
   const isRBACEnabledQuery = useIsRBACEnabled(environmentId);
   const initialValues: {
@@ -75,7 +78,9 @@ export function CreateAccessWidget() {
                 initialValues={initialValues}
                 enableReinitialize
                 validationSchema={validationSchema}
-                onSubmit={onSubmit}
+                onSubmit={(values, formikHelpers) =>
+                  onSubmit(values, formikHelpers)
+                }
                 validateOnMount
               >
                 {(formikProps) => (
@@ -104,10 +109,10 @@ export function CreateAccessWidget() {
         namespaceAccesses,
         values.selectedUsersAndTeams,
         namespaceName,
-        configMap
+        configMap ?? newConfigMap(user.Username, user.Id)
       );
       await updateConfigMapMutation.mutateAsync({
-        data: configMapPayload,
+        configMap: configMapPayload,
         configMapName: PortainerNamespaceAccessesConfigMap.configMapName,
       });
       notifySuccess('Success', 'Namespace access updated');
@@ -117,3 +122,18 @@ export function CreateAccessWidget() {
     }
   }
 }
+
+function newConfigMap(userName: string, userId: number) {
+  const configMap: Configuration = {
+    Type: 1,
+    UID: '',
+    Name: PortainerNamespaceAccessesConfigMap.configMapName,
+    Namespace: PortainerNamespaceAccessesConfigMap.namespace,
+    Data: { [PortainerNamespaceAccessesConfigMap.accessKey]: '{}' },
+    ConfigurationOwner: userName,
+    ConfigurationOwnerId: `${userId}`,
+    IsUsed: false,
+    Yaml: '',
+  };
+  return configMap;
+}