diff --git a/homeassistant/components/telegram_bot/config_flow.py b/homeassistant/components/telegram_bot/config_flow.py
index 1a77a5b9a81..7b441889b8c 100644
--- a/homeassistant/components/telegram_bot/config_flow.py
+++ b/homeassistant/components/telegram_bot/config_flow.py
@@ -412,12 +412,20 @@ class TelgramBotConfigFlow(ConfigFlow, domain=DOMAIN):
         """Handle config flow for webhook Telegram bot."""
 
         if not user_input:
+            default_trusted_networks = ",".join(
+                [str(network) for network in DEFAULT_TRUSTED_NETWORKS]
+            )
+
             if self.source == SOURCE_RECONFIGURE:
+                suggested_values = dict(self._get_reconfigure_entry().data)
+                if CONF_TRUSTED_NETWORKS not in self._get_reconfigure_entry().data:
+                    suggested_values[CONF_TRUSTED_NETWORKS] = default_trusted_networks
+
                 return self.async_show_form(
                     step_id="webhooks",
                     data_schema=self.add_suggested_values_to_schema(
                         STEP_WEBHOOKS_DATA_SCHEMA,
-                        self._get_reconfigure_entry().data,
+                        suggested_values,
                     ),
                 )
 
@@ -426,9 +434,7 @@ class TelgramBotConfigFlow(ConfigFlow, domain=DOMAIN):
                 data_schema=self.add_suggested_values_to_schema(
                     STEP_WEBHOOKS_DATA_SCHEMA,
                     {
-                        CONF_TRUSTED_NETWORKS: ",".join(
-                            [str(network) for network in DEFAULT_TRUSTED_NETWORKS]
-                        ),
+                        CONF_TRUSTED_NETWORKS: default_trusted_networks,
                     },
                 ),
             )
@@ -479,12 +485,8 @@ class TelgramBotConfigFlow(ConfigFlow, domain=DOMAIN):
         description_placeholders: dict[str, str],
     ) -> None:
         # validate URL
-        if CONF_URL in user_input and not user_input[CONF_URL].startswith("https"):
-            errors["base"] = "invalid_url"
-            description_placeholders[ERROR_FIELD] = "URL"
-            description_placeholders[ERROR_MESSAGE] = "URL must start with https"
-            return
-        if CONF_URL not in user_input:
+        url: str | None = user_input.get(CONF_URL)
+        if url is None:
             try:
                 get_url(self.hass, require_ssl=True, allow_internal=False)
             except NoURLAvailableError:
@@ -494,6 +496,11 @@ class TelgramBotConfigFlow(ConfigFlow, domain=DOMAIN):
                     "URL is required since you have not configured an external URL in Home Assistant"
                 )
                 return
+        elif not url.startswith("https"):
+            errors["base"] = "invalid_url"
+            description_placeholders[ERROR_FIELD] = "URL"
+            description_placeholders[ERROR_MESSAGE] = "URL must start with https"
+            return
 
         # validate trusted networks
         csv_trusted_networks: list[str] = []
diff --git a/tests/components/telegram_bot/test_config_flow.py b/tests/components/telegram_bot/test_config_flow.py
index e13fab8f28b..2af90b9f7ef 100644
--- a/tests/components/telegram_bot/test_config_flow.py
+++ b/tests/components/telegram_bot/test_config_flow.py
@@ -121,13 +121,13 @@ async def test_reconfigure_flow_broadcast(
 
 async def test_reconfigure_flow_webhooks(
     hass: HomeAssistant,
-    mock_webhooks_config_entry: MockConfigEntry,
+    mock_broadcast_config_entry: MockConfigEntry,
     mock_external_calls: None,
 ) -> None:
     """Test reconfigure flow for webhook."""
-    mock_webhooks_config_entry.add_to_hass(hass)
+    mock_broadcast_config_entry.add_to_hass(hass)
 
-    result = await mock_webhooks_config_entry.start_reconfigure_flow(hass)
+    result = await mock_broadcast_config_entry.start_reconfigure_flow(hass)
     assert result["step_id"] == "reconfigure"
     assert result["type"] is FlowResultType.FORM
     assert result["errors"] is None
@@ -198,8 +198,8 @@ async def test_reconfigure_flow_webhooks(
 
     assert result["type"] is FlowResultType.ABORT
     assert result["reason"] == "reconfigure_successful"
-    assert mock_webhooks_config_entry.data[CONF_URL] == "https://reconfigure"
-    assert mock_webhooks_config_entry.data[CONF_TRUSTED_NETWORKS] == [
+    assert mock_broadcast_config_entry.data[CONF_URL] == "https://reconfigure"
+    assert mock_broadcast_config_entry.data[CONF_TRUSTED_NETWORKS] == [
         "149.154.160.0/20"
     ]
 
@@ -499,9 +499,22 @@ async def test_import_multiple(
         CONF_BOT_COUNT: 2,
     }
 
-    with patch(
-        "homeassistant.components.telegram_bot.config_flow.Bot.get_me",
-        return_value=User(123456, "Testbot", True),
+    with (
+        patch(
+            "homeassistant.components.telegram_bot.config_flow.Bot.get_me",
+            return_value=User(123456, "Testbot", True),
+        ),
+        patch(
+            "homeassistant.components.telegram_bot.config_flow.Bot.get_chat",
+            return_value=ChatFullInfo(
+                id=987654321,
+                title="mock title",
+                first_name="mock first_name",
+                type="PRIVATE",
+                max_reaction_count=100,
+                accent_color_id=AccentColor.COLOR_000,
+            ),
+        ),
     ):
         # test: import first entry success