diff --git a/__test__/components/PeopleSearch.test.tsx b/__test__/components/PeopleSearch.test.tsx
index ba8a934..3d5c7b5 100644
--- a/__test__/components/PeopleSearch.test.tsx
+++ b/__test__/components/PeopleSearch.test.tsx
@@ -127,4 +127,93 @@ describe("PeopleSearch", () => {
       expect(screen.queryByRole("listbox")).not.toBeInTheDocument();
     });
   });
+
+  it("shows 'No results' when search succeeds but returns empty array", async () => {
+    mockedSearchUsers.mockResolvedValueOnce([]);
+    setup();
+
+    const input = screen.getByRole("combobox");
+    await userEvent.type(input, "Test");
+
+    await act(async () => {
+      jest.advanceTimersByTime(300);
+      await Promise.resolve();
+      await Promise.resolve();
+    });
+
+    const noResults = await screen.findByText(
+      "peopleSearch.noResults",
+      {},
+      { timeout: 5000 }
+    );
+    expect(noResults).toBeInTheDocument();
+  });
+
+  it("does not clear options when search fails and shows error snackbar", async () => {
+    mockedSearchUsers.mockResolvedValueOnce([baseUser]);
+    setup();
+
+    const input = screen.getByRole("combobox");
+    await userEvent.type(input, "Test");
+    await act(async () => {
+      jest.advanceTimersByTime(300);
+      await Promise.resolve();
+    });
+
+    await waitFor(() => {
+      expect(screen.getByText("Test User")).toBeInTheDocument();
+    });
+
+    mockedSearchUsers.mockRejectedValueOnce(new Error("Network error"));
+    await userEvent.clear(input);
+    await userEvent.type(input, "Error");
+    await act(async () => {
+      jest.advanceTimersByTime(300);
+      await Promise.resolve();
+    });
+
+    const errorMessage = await screen.findByText("peopleSearch.searchError");
+    expect(errorMessage).toBeInTheDocument();
+
+    expect(screen.queryByText("Test User")).not.toBeInTheDocument();
+
+    mockedSearchUsers.mockResolvedValueOnce([baseUser]);
+    await userEvent.clear(input);
+    await userEvent.type(input, "Test");
+    await act(async () => {
+      jest.advanceTimersByTime(300);
+      await Promise.resolve();
+    });
+
+    await waitFor(() => {
+      expect(screen.getByText("Test User")).toBeInTheDocument();
+    });
+  });
+
+  it("shows loading text when searching", async () => {
+    let resolveSearch: (value: User[]) => void;
+    const searchPromise = new Promise<User[]>((resolve) => {
+      resolveSearch = resolve;
+    });
+    mockedSearchUsers.mockReturnValueOnce(searchPromise);
+    setup();
+
+    const input = screen.getByRole("combobox");
+    await userEvent.type(input, "Test");
+    await act(async () => {
+      jest.advanceTimersByTime(300);
+    });
+
+    const loadingText = await screen.findByText(
+      "peopleSearch.loading",
+      {},
+      { timeout: 5000 }
+    );
+    expect(loadingText).toBeInTheDocument();
+
+    await act(async () => {
+      resolveSearch!([baseUser]);
+      await searchPromise;
+    });
+  });
 });
diff --git a/src/components/Attendees/PeopleSearch.tsx b/src/components/Attendees/PeopleSearch.tsx
index 3cb1ff7..dc3bf26 100644
--- a/src/components/Attendees/PeopleSearch.tsx
+++ b/src/components/Attendees/PeopleSearch.tsx
@@ -5,13 +5,14 @@ import ListItem from "@mui/material/ListItem";
 import ListItemAvatar from "@mui/material/ListItemAvatar";
 import ListItemText from "@mui/material/ListItemText";
 import TextField from "@mui/material/TextField";
-import { useState, useEffect } from "react";
+import { useEffect, useState } from "react";
 import { searchUsers } from "../../features/User/userAPI";
 import PeopleOutlineOutlinedIcon from "@mui/icons-material/PeopleOutlineOutlined";
 import Chip from "@mui/material/Chip";
 import { useTheme } from "@mui/material/styles";
 import { getAccessiblePair } from "../Calendar/utils/calendarColorsUtils";
 import { useI18n } from "cozy-ui/transpiled/react/providers/I18n";
+import { SnackbarAlert } from "../Loading/SnackBarAlert";
 
 export interface User {
   email: string;
@@ -40,137 +41,191 @@ export function PeopleSearch({
   const [query, setQuery] = useState("");
   const [loading, setLoading] = useState(false);
   const [options, setOptions] = useState<User[]>([]);
+  const [hasSearched, setHasSearched] = useState(false);
 
   const isValidEmail = (email: string) =>
     /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(email);
-  const [error, setError] = useState<string | null>(null);
+  const [inputError, setInputError] = useState<string | null>(null);
+  const [snackbarOpen, setSnackbarOpen] = useState(false);
+  const [snackbarMessage, setSnackbarMessage] = useState("");
   const theme = useTheme();
 
   useEffect(() => {
+    let cancelled = false;
+
     const delayDebounceFn = setTimeout(async () => {
-      if (query) {
+      if (!query.trim()) {
+        if (!cancelled) {
+          setOptions([]);
+          setLoading(false);
+          setHasSearched(false);
+        }
+        return;
+      }
+
+      if (!cancelled) {
         setLoading(true);
+        setHasSearched(false);
+      }
+
+      try {
         const res = await searchUsers(query, objectTypes);
-        setOptions(res);
-        setLoading(false);
+        if (!cancelled) {
+          setOptions(res);
+          setHasSearched(true);
+        }
+      } catch (error: any) {
+        if (!cancelled) {
+          setHasSearched(false);
+          setSnackbarMessage(t("peopleSearch.searchError"));
+          setSnackbarOpen(true);
+        }
+      } finally {
+        if (!cancelled) {
+          setLoading(false);
+        }
       }
     }, 300);
 
-    return () => clearTimeout(delayDebounceFn);
-  }, [query, objectTypes]);
+    return () => {
+      cancelled = true;
+      clearTimeout(delayDebounceFn);
+    };
+  }, [objectTypes, query, t]);
 
   return (
-    <Autocomplete
-      freeSolo={freeSolo}
-      multiple
-      options={options}
-      autoComplete={false}
-      open={!!query}
-      disabled={disabled}
-      loading={loading}
-      filterOptions={(x) => x}
-      fullWidth
-      getOptionLabel={(option) => {
-        if (typeof option === "object") {
-          return option.displayName || option.email;
-        } else {
-          return option;
-        }
-      }}
-      filterSelectedOptions
-      value={selectedUsers}
-      onInputChange={(event, value) => setQuery(value)}
-      onChange={(event, value) => {
-        const last = value[value.length - 1];
-        if (typeof last === "string" && !isValidEmail(last)) {
-          setError(t("peopleSearch.invalidEmail", { email: last }));
-          return;
-        }
-        setError(null);
-        const mapped = value.map((v: any) =>
-          typeof v === "string" ? { email: v } : v
-        );
-        onChange(event, mapped);
-      }}
-      renderInput={(params) => (
-        <TextField
-          {...params}
-          error={!!error}
-          helperText={error}
-          placeholder={t("peopleSearch.placeholder")}
-          label={t("peopleSearch.label")}
-          autoComplete="off"
-          onKeyDown={(e) => {
-            if (e.key === "Enter" && onToggleEventPreview) {
-              e.preventDefault();
-              onToggleEventPreview();
-            }
-          }}
-          slotProps={{
-            input: {
-              ...params.InputProps,
-              autoComplete: "off",
-              startAdornment: (
-                <>
-                  <PeopleOutlineOutlinedIcon
-                    style={{ marginRight: 8, color: "rgba(0, 0, 0, 0.54)" }}
-                  />
-                  {params.InputProps.startAdornment}
-                </>
-              ),
-              endAdornment: (
-                <>
-                  {loading ? (
-                    <CircularProgress color="inherit" size={20} />
-                  ) : null}
-                  {params.InputProps.endAdornment}
-                </>
-              ),
-            },
-          }}
-          inputProps={{
-            ...params.inputProps,
-            autoComplete: "off",
-          }}
-        />
-      )}
-      renderOption={(props, option) => {
-        if (selectedUsers.find((u) => u.email === option.email)) return null;
-        const { key, ...otherProps } = props as any;
-        return (
-          <ListItem key={key + option?.email} {...otherProps} disableGutters>
-            <ListItemAvatar>
-              <Avatar src={option.avatarUrl} alt={option.displayName} />
-            </ListItemAvatar>
-            <ListItemText
-              primary={option.displayName}
-              secondary={option.email}
-            />
-          </ListItem>
-        );
-      }}
-      renderValue={(value, getTagProps) =>
-        value.map((option, index) => {
-          const isString = typeof option === "string";
-          const label = isString ? option : option.displayName || option.email;
-          const chipColor = isString
-            ? theme.palette.grey[300]
-            : (option.color?.light ?? theme.palette.grey[300]);
-          const textColor = getAccessiblePair(chipColor, theme);
-
-          return (
-            <Chip
-              {...getTagProps({ index })}
-              key={label}
-              style={{
-                backgroundColor: chipColor,
-                color: textColor,
-              }}
-              label={label}
-            />
+    <>
+      <Autocomplete
+        freeSolo={freeSolo}
+        multiple
+        options={options}
+        autoComplete={false}
+        open={!!query && (loading || hasSearched)}
+        disabled={disabled}
+        loading={loading}
+        filterOptions={(x) => x}
+        fullWidth
+        noOptionsText={t("peopleSearch.noResults")}
+        loadingText={t("peopleSearch.loading")}
+        getOptionLabel={(option) => {
+          if (typeof option === "object") {
+            return option.displayName || option.email;
+          } else {
+            return option;
+          }
+        }}
+        filterSelectedOptions
+        value={selectedUsers}
+        onInputChange={(event, value) => setQuery(value)}
+        onChange={(event, value) => {
+          const last = value[value.length - 1];
+          if (typeof last === "string" && !isValidEmail(last)) {
+            const invalidEmailMessage = t("peopleSearch.invalidEmail").replace(
+              "%{email}",
+              last
+            );
+            setInputError(invalidEmailMessage);
+            return;
+          }
+          setInputError(null);
+          const mapped = value.map((v: any) =>
+            typeof v === "string" ? { email: v } : v
           );
-        })
-      }
-    />
+          onChange(event, mapped);
+        }}
+        renderInput={(params) => (
+          <TextField
+            {...params}
+            error={!!inputError}
+            helperText={inputError}
+            placeholder={t("peopleSearch.placeholder")}
+            label={t("peopleSearch.label")}
+            autoComplete="off"
+            onKeyDown={(e) => {
+              if (e.key === "Enter" && onToggleEventPreview) {
+                e.preventDefault();
+                onToggleEventPreview();
+              }
+            }}
+            slotProps={{
+              input: {
+                ...params.InputProps,
+                autoComplete: "off",
+                startAdornment: (
+                  <>
+                    <PeopleOutlineOutlinedIcon
+                      style={{ marginRight: 8, color: "rgba(0, 0, 0, 0.54)" }}
+                    />
+                    {params.InputProps.startAdornment}
+                  </>
+                ),
+                endAdornment: (
+                  <>
+                    {loading ? (
+                      <CircularProgress color="inherit" size={20} />
+                    ) : null}
+                    {params.InputProps.endAdornment}
+                  </>
+                ),
+              },
+            }}
+            inputProps={{
+              ...params.inputProps,
+              autoComplete: "off",
+            }}
+          />
+        )}
+        renderOption={(props, option) => {
+          if (selectedUsers.find((u) => u.email === option.email)) return null;
+          const { key, ...otherProps } = props as any;
+          return (
+            <ListItem key={key + option?.email} {...otherProps} disableGutters>
+              <ListItemAvatar>
+                <Avatar src={option.avatarUrl} alt={option.displayName} />
+              </ListItemAvatar>
+              <ListItemText
+                primary={option.displayName}
+                secondary={option.email}
+              />
+            </ListItem>
+          );
+        }}
+        renderValue={(value, getTagProps) =>
+          value.map((option, index) => {
+            const isString = typeof option === "string";
+            const label = isString
+              ? option
+              : option.displayName || option.email;
+            const chipColor = isString
+              ? theme.palette.grey[300]
+              : (option.color?.light ?? theme.palette.grey[300]);
+            const textColor = getAccessiblePair(chipColor, theme);
+
+            return (
+              <Chip
+                {...getTagProps({ index })}
+                key={label}
+                style={{
+                  backgroundColor: chipColor,
+                  color: textColor,
+                }}
+                label={label}
+              />
+            );
+          })
+        }
+      />
+      <SnackbarAlert
+        open={snackbarOpen}
+        setOpen={(open: boolean) => {
+          setSnackbarOpen(open);
+          if (!open) {
+            setSnackbarMessage("");
+          }
+        }}
+        message={snackbarMessage}
+        severity="error"
+      />
+    </>
   );
 }
diff --git a/src/components/Loading/SnackBarAlert.tsx b/src/components/Loading/SnackBarAlert.tsx
index c5dbd08..ab10fdf 100644
--- a/src/components/Loading/SnackBarAlert.tsx
+++ b/src/components/Loading/SnackBarAlert.tsx
@@ -1,14 +1,16 @@
-import Alert from "@mui/material/Alert";
+import Alert, { AlertColor } from "@mui/material/Alert";
 import Snackbar from "@mui/material/Snackbar";
 
 export function SnackbarAlert({
   open,
   setOpen,
   message,
+  severity = "success",
 }: {
   open: boolean;
   setOpen: Function;
   message: string;
+  severity?: AlertColor;
 }) {
   return (
     <Snackbar
@@ -17,7 +19,11 @@ export function SnackbarAlert({
       onClose={() => setOpen(false)}
       anchorOrigin={{ vertical: "bottom", horizontal: "center" }}
     >
-      <Alert onClose={() => setOpen(false)} sx={{ width: "100%" }}>
+      <Alert
+        severity={severity}
+        onClose={() => setOpen(false)}
+        sx={{ width: "100%" }}
+      >
         {message}
       </Alert>
     </Snackbar>
diff --git a/src/locales/en.json b/src/locales/en.json
index 90eae1a..dd18300 100644
--- a/src/locales/en.json
+++ b/src/locales/en.json
@@ -154,7 +154,10 @@
   "peopleSearch": {
     "label": "Start typing a name or email",
     "placeholder": "Start typing a name or email",
-    "invalidEmail": "%{email} is not a valid email address"
+    "invalidEmail": "%{email} is not a valid email address",
+    "searchError": "Unable to fetch contacts right now. Please try again.",
+    "noResults": "No results",
+    "loading": "Loading..."
   },
   "error": {
     "title": "Something went wrong",
diff --git a/src/locales/fr.json b/src/locales/fr.json
index 1a8fcaf..fcf1970 100644
--- a/src/locales/fr.json
+++ b/src/locales/fr.json
@@ -154,7 +154,10 @@
   "peopleSearch": {
     "label": "Commencez à saisir un nom ou un e-mail",
     "placeholder": "Commencez à saisir un nom ou un e-mail",
-    "invalidEmail": "%{email} n'est pas une adresse e-mail valide"
+    "invalidEmail": "%{email} n'est pas une adresse e-mail valide",
+    "searchError": "Impossible de récupérer les contacts pour le moment. Veuillez réessayer.",
+    "noResults": "Aucun résultat",
+    "loading": "Chargement..."
   },
   "error": {
     "title": "Une erreur s'est produite",