From 9e425ee684e95d9ad11932c0fdf6590129c9ba4b Mon Sep 17 00:00:00 2001
From: Guillim <guillim@users.noreply.github.com>
Date: Tue, 18 Nov 2025 11:17:49 +0100
Subject: [PATCH] preventing the last item to be unselected (#15873)

Fix https://github.com/twentyhq/twenty/issues/15867
---
 .../settings/components/SettingsMorphRelationMultiSelect.tsx   | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/twenty-front/src/modules/settings/components/SettingsMorphRelationMultiSelect.tsx b/packages/twenty-front/src/modules/settings/components/SettingsMorphRelationMultiSelect.tsx
index 9358c5961d..e80bb8a0d8 100644
--- a/packages/twenty-front/src/modules/settings/components/SettingsMorphRelationMultiSelect.tsx
+++ b/packages/twenty-front/src/modules/settings/components/SettingsMorphRelationMultiSelect.tsx
@@ -147,6 +147,9 @@ export const SettingsMorphRelationMultiSelect = ({
   const addOrRemoveFromArray = (array: string[], item: string) => {
     let newArray = new Set(array);
     if (newArray.has(item)) {
+      if (newArray.size <= 1) {
+        return array;
+      }
       newArray.delete(item);
     } else {
       newArray.add(item);