diff --git a/multi_livechat/models/mail_channel.py b/multi_livechat/models/mail_channel.py
index b718786d..ae27e04e 100644
--- a/multi_livechat/models/mail_channel.py
+++ b/multi_livechat/models/mail_channel.py
@@ -21,8 +21,6 @@ def _prepare_multi_livechat_channel_vals(
     ):
         return {
             "channel_partner_ids": [(4, pid) for pid in partner_ids],
-            "public": "groups",
-            "group_public_id": self.env.ref("base.group_user").id,
             "channel_type": channel_type,
             "name": channel_name,
         }
@@ -30,7 +28,7 @@ def _prepare_multi_livechat_channel_vals(
     def _compute_is_pinned(self):
         # TODO: make batch search via read_group
         for r in self:
-            r.is_pinned = self.env["mail.channel.partner"].search_count(
+            r.is_pinned = self.env["mail.channel.member"].search_count(
                 [
                     ("partner_id", "=", self.env.user.partner_id.id),
                     ("channel_id", "=", r.id),
@@ -41,7 +39,7 @@ def _compute_is_pinned(self):
     def _inverse_is_pinned(self):
         # TODO: make batch search via read_group
         for r in self:
-            channel_partner = self.env["mail.channel.partner"].search(
+            channel_partner = self.env["mail.channel.member"].search(
                 [
                     ("partner_id", "=", self.env.user.partner_id.id),
                     ("channel_id", "=", r.id),