diff --git a/internal/rpc/group/group.go b/internal/rpc/group/group.go
index 2026ba71b..5dbba1146 100644
--- a/internal/rpc/group/group.go
+++ b/internal/rpc/group/group.go
@@ -379,9 +379,9 @@ func (g *groupServer) InviteUserToGroup(ctx context.Context, req *pbgroup.Invite
 	}
 
 	var groupMember *model.GroupMember
-	var opUserID string
+	opUserID := mcontext.GetOpUserID(ctx)
+
 	if !authverify.IsAdmin(ctx) {
-		opUserID = mcontext.GetOpUserID(ctx)
 		var err error
 		groupMember, err = g.db.TakeGroupMember(ctx, req.GroupID, opUserID)
 		if err != nil {
@@ -390,8 +390,6 @@ func (g *groupServer) InviteUserToGroup(ctx context.Context, req *pbgroup.Invite
 		if err := g.PopulateGroupMember(ctx, groupMember); err != nil {
 			return nil, err
 		}
-	} else {
-		opUserID = mcontext.GetOpUserID(ctx)
 	}
 
 	if err := g.webhookBeforeInviteUserToGroup(ctx, &g.config.WebhooksConfig.BeforeInviteUserToGroup, req); err != nil && err != servererrs.ErrCallbackContinue {
@@ -450,10 +448,7 @@ func (g *groupServer) InviteUserToGroup(ctx context.Context, req *pbgroup.Invite
 
 	const singleQuantity = 50
 	for start := 0; start < len(groupMembers); start += singleQuantity {
-		end := start + singleQuantity
-		if end > len(groupMembers) {
-			end = len(groupMembers)
-		}
+		end := min(start+singleQuantity, len(groupMembers))
 		currentMembers := groupMembers[start:end]
 
 		if err := g.db.CreateGroup(ctx, nil, currentMembers); err != nil {
@@ -464,8 +459,8 @@ func (g *groupServer) InviteUserToGroup(ctx context.Context, req *pbgroup.Invite
 			return e.UserID
 		})
 
-		if err = g.notification.GroupApplicationAgreeMemberEnterNotification(ctx, req.GroupID, req.SendMessage, opUserID, userIDs...); err != nil {
-			return nil, err
+		if len(userIDs) != 0 {
+			g.notification.GroupApplicationAgreeMemberEnterNotification(ctx, req.GroupID, req.SendMessage, opUserID, userIDs...)
 		}
 	}
 	return &pbgroup.InviteUserToGroupResp{}, nil