diff --git a/app/shop/api/etc/shop-api.yaml b/app/shop/api/etc/shop-api.yaml
index 6ecd4ff..fabc5b1 100644
--- a/app/shop/api/etc/shop-api.yaml
+++ b/app/shop/api/etc/shop-api.yaml
@@ -17,4 +17,7 @@ Prometheus:
 # ===== DEV CONFIG ====
 ShopRpcConf:
   Endpoints:
-    - shop-rpc:8080
\ No newline at end of file
+    - shop-rpc:8080
+PlayerRpcConf:
+  Endpoints:
+    - player-rpc:8080
diff --git a/app/shop/api/internal/config/config.go b/app/shop/api/internal/config/config.go
index b15f22d..cda177e 100644
--- a/app/shop/api/internal/config/config.go
+++ b/app/shop/api/internal/config/config.go
@@ -10,5 +10,6 @@ import (
 
 type Config struct {
 	rest.RestConf
-	ShopRpcConf zrpc.RpcClientConf
+	ShopRpcConf   zrpc.RpcClientConf
+	PlayerRpcConf zrpc.RpcClientConf
 }
diff --git a/app/shop/api/internal/logic/shop/acceptInvitationLogic.go b/app/shop/api/internal/logic/shop/acceptInvitationLogic.go
index 35d9395..0ca869d 100644
--- a/app/shop/api/internal/logic/shop/acceptInvitationLogic.go
+++ b/app/shop/api/internal/logic/shop/acceptInvitationLogic.go
@@ -6,6 +6,7 @@ package shop
 import (
 	"context"
 	"errors"
+	"juwan-backend/app/player/rpc/playerservice"
 	"juwan-backend/app/shop/api/internal/svc"
 	"juwan-backend/app/shop/api/internal/types"
 	"juwan-backend/app/shop/rpc/pb"
@@ -13,6 +14,8 @@ import (
 	"time"
 
 	"github.com/zeromicro/go-zero/core/logx"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
 )
 
 type AcceptInvitationLogic struct {
@@ -35,6 +38,18 @@ func (l *AcceptInvitationLogic) AcceptInvitation(req *types.AcceptInvitationReq)
 	if err != nil {
 		return nil, err
 	}
+	playerResp, err := l.svcCtx.PlayerRpc.GetPlayerByUserId(l.ctx, &playerservice.SearchPlayersReq{UserId: &userId})
+	if err != nil {
+		st, _ := status.FromError(err)
+		if st.Code() == codes.NotFound {
+			return nil, errors.New("bad request: invitation not found or not owned by user")
+		}
+		return nil, err
+	}
+	player := playerResp.GetPlayers()
+	if player == nil {
+		return nil, errors.New("bad request: invitation not found or not owned by user")
+	}
 	invitation, err := l.svcCtx.ShopRpc.GetShopInvitationsById(l.ctx, &pb.GetShopInvitationsByIdReq{Id: req.Id})
 	if err != nil {
 		return nil, err
@@ -42,14 +57,14 @@ func (l *AcceptInvitationLogic) AcceptInvitation(req *types.AcceptInvitationReq)
 	if invitation.ShopInvitations == nil {
 		return nil, errors.New("invitation not found")
 	}
-	if invitation.ShopInvitations.PlayerId != userId {
+	if invitation.ShopInvitations.PlayerId != player.Id {
 		return nil, errors.New("bad request: invitation not found or not owned by user")
 	}
 
 	i, err := l.svcCtx.ShopRpc.UpdateShopInvitations(l.ctx, &pb.UpdateShopInvitationsReq{
 		Id:          req.Id,
 		ShopId:      invitation.ShopInvitations.ShopId,
-		PlayerId:    userId,
+		PlayerId:    player.Id,
 		Status:      "accepted",
 		InvitedBy:   invitation.ShopInvitations.InvitedBy,
 		CreatedAt:   invitation.ShopInvitations.CreatedAt,
@@ -60,7 +75,7 @@ func (l *AcceptInvitationLogic) AcceptInvitation(req *types.AcceptInvitationReq)
 	}
 	_, err = l.svcCtx.ShopRpc.AddShopPlayers(l.ctx, &pb.AddShopPlayersReq{
 		ShopId:    i.ShopInvitations.ShopId,
-		PlayerId:  userId,
+		PlayerId:  player.Id,
 		IsPrimary: false,
 		JoinedAt:  time.Now().Unix(),
 		LeftAt:    0,
diff --git a/app/shop/api/internal/logic/shop/rejectInvitationLogic.go b/app/shop/api/internal/logic/shop/rejectInvitationLogic.go
index ea9fe1e..5ca1304 100644
--- a/app/shop/api/internal/logic/shop/rejectInvitationLogic.go
+++ b/app/shop/api/internal/logic/shop/rejectInvitationLogic.go
@@ -8,12 +8,15 @@ import (
 	"errors"
 	"time"
 
+	"juwan-backend/app/player/rpc/playerservice"
 	"juwan-backend/app/shop/api/internal/svc"
 	"juwan-backend/app/shop/api/internal/types"
 	"juwan-backend/app/shop/rpc/pb"
 	"juwan-backend/common/utils/contextj"
 
 	"github.com/zeromicro/go-zero/core/logx"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
 )
 
 type RejectInvitationLogic struct {
@@ -36,6 +39,18 @@ func (l *RejectInvitationLogic) RejectInvitation(req *types.AcceptInvitationReq)
 	if err != nil {
 		return nil, err
 	}
+	playerResp, err := l.svcCtx.PlayerRpc.GetPlayerByUserId(l.ctx, &playerservice.SearchPlayersReq{UserId: &userID})
+	if err != nil {
+		st, _ := status.FromError(err)
+		if st.Code() == codes.NotFound {
+			return nil, contextj.ERRILLEGALUSER
+		}
+		return nil, err
+	}
+	player := playerResp.GetPlayers()
+	if player == nil {
+		return nil, contextj.ERRILLEGALUSER
+	}
 
 	invitation, err := l.svcCtx.ShopRpc.GetShopInvitationsById(l.ctx, &pb.GetShopInvitationsByIdReq{Id: req.Id})
 	if err != nil {
@@ -44,7 +59,7 @@ func (l *RejectInvitationLogic) RejectInvitation(req *types.AcceptInvitationReq)
 	if invitation.ShopInvitations == nil {
 		return nil, errors.New("invitation not found")
 	}
-	if invitation.ShopInvitations.PlayerId != userID {
+	if invitation.ShopInvitations.PlayerId != player.Id {
 		return nil, contextj.ERRILLEGALUSER
 	}
 
diff --git a/app/shop/api/internal/svc/serviceContext.go b/app/shop/api/internal/svc/serviceContext.go
index c8a407e..fffc76a 100644
--- a/app/shop/api/internal/svc/serviceContext.go
+++ b/app/shop/api/internal/svc/serviceContext.go
@@ -4,6 +4,7 @@
 package svc
 
 import (
+	"juwan-backend/app/player/rpc/playerservice"
 	"juwan-backend/app/shop/api/internal/config"
 	"juwan-backend/app/shop/rpc/shopservice"
 	"juwan-backend/common/middlewares"
@@ -15,6 +16,7 @@ import (
 type ServiceContext struct {
 	Config                    config.Config
 	ShopRpc                   shopservice.ShopService
+	PlayerRpc                 playerservice.PlayerService
 	HeaderExtractorMiddleware rest.Middleware
 }
 
@@ -22,6 +24,7 @@ func NewServiceContext(c config.Config) *ServiceContext {
 	return &ServiceContext{
 		Config:                    c,
 		ShopRpc:                   shopservice.NewShopService(zrpc.MustNewClient(c.ShopRpcConf)),
+		PlayerRpc:                 playerservice.NewPlayerService(zrpc.MustNewClient(c.PlayerRpcConf)),
 		HeaderExtractorMiddleware: middlewares.NewHeaderExtractorMiddleware().Handle,
 	}
 }