diff --git a/app/src/main/java/com/gamedog/vididin/features/zero/ZeroBuyActivity.kt b/app/src/main/java/com/gamedog/vididin/features/zero/ZeroBuyActivity.kt
index fead73a..c92de6b 100644
--- a/app/src/main/java/com/gamedog/vididin/features/zero/ZeroBuyActivity.kt
+++ b/app/src/main/java/com/gamedog/vididin/features/zero/ZeroBuyActivity.kt
@@ -9,7 +9,9 @@ import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
 import androidx.recyclerview.widget.GridLayoutManager
 import com.ama.core.architecture.appBase.AppViewsEmptyViewModelActivity
+import com.ama.core.architecture.util.AndroidUtil
 import com.ama.core.architecture.util.CommonItemDecoration
+import com.ama.core.architecture.util.SpUtil
 import com.ama.core.architecture.util.setOnClickBatch
 import com.vididin.real.money.game.R
 import com.gamedog.vididin.beans.ZeroBuyItem
@@ -20,6 +22,7 @@ import com.gamedog.vididin.router.Router
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.launch
 import com.gamedog.vididin.netbase.Result
+import kotlin.collections.contains
 import com.vididin.real.money.game.databinding.ActivityZerobuyBinding as ViewBinding
 
 
@@ -109,19 +112,24 @@ class ZeroBuyActivity : AppViewsEmptyViewModelActivity<ViewBinding>() {
 
 
     private fun requestParticipateActivity(itemId: Int) {
-        lifecycleScope.launch {
-            repeatOnLifecycle(Lifecycle.State.STARTED) {
-                viewModel.ZeroBuyJoinResult.collect { result ->
-                    when (result) {
-                        is Result.Loading -> { }
-                        is Result.Success -> updateItemUI(result.data)
-                        is Result.Error -> { }
+        val joinedItemIds: List<Int> = SpUtil.instance().getList<Int>(SpUtil.KEY_ZEROBUY_JOINED_ACTIVITY_IDS)
+        if (!joinedItemIds.contains(AccountManager.getAccount()?.userId)) {
+            lifecycleScope.launch {
+                repeatOnLifecycle(Lifecycle.State.STARTED) {
+                    viewModel.ZeroBuyJoinResult.collect { result ->
+                        when (result) {
+                            is Result.Loading -> { }
+                            is Result.Success -> updateItemUI(result.data)
+                            is Result.Error -> { }
+                        }
                     }
                 }
             }
-        }
 
-        viewModel.requestJoinZeroBuy(itemId)
+            viewModel.requestJoinZeroBuy(itemId)
+        } else {
+            AndroidUtil.showToast(R.string.has_joined_zerobuy)
+        }
     }
 
 
diff --git a/app/src/main/java/com/gamedog/vididin/features/zero/ZeroBuyViewModel.kt b/app/src/main/java/com/gamedog/vididin/features/zero/ZeroBuyViewModel.kt
index 8191945..dd6fc83 100644
--- a/app/src/main/java/com/gamedog/vididin/features/zero/ZeroBuyViewModel.kt
+++ b/app/src/main/java/com/gamedog/vididin/features/zero/ZeroBuyViewModel.kt
@@ -57,7 +57,7 @@ class ZeroBuyViewModel : ViewModel() {
 
                     respObj?.contentObj?.let {
                         val itemId = respObj?.contentObj?.id
-                        if (respObj.Code == 0 && itemId != null && itemId > 0 && !joinZeroBuyItemIds.contains(itemId)) {
+                        if ((respObj.Code == 0 || respObj.Code == 10003) && itemId != null && itemId > 0 && !joinZeroBuyItemIds.contains(itemId)) {
                             val mutableJoinedIdList = if(joinZeroBuyItemIds == null) mutableListOf<Int>() else joinZeroBuyItemIds.toMutableList()
                             mutableJoinedIdList.add(itemId)
                             SpUtil.instance().putList(SpUtil.KEY_ZEROBUY_JOINED_ACTIVITY_IDS, mutableJoinedIdList)
diff --git a/app/src/main/java/com/gamedog/vididin/features/zero/ZeroItemAdapter.kt b/app/src/main/java/com/gamedog/vididin/features/zero/ZeroItemAdapter.kt
index 02e0f23..a37e8c0 100644
--- a/app/src/main/java/com/gamedog/vididin/features/zero/ZeroItemAdapter.kt
+++ b/app/src/main/java/com/gamedog/vididin/features/zero/ZeroItemAdapter.kt
@@ -77,9 +77,7 @@ class ZeroItemAdapter(private val joinCallback: (itemId: Int)->Unit) : ListAdapt
                 setOnClickBatch(flBottomBut) {
                     when (this) {
                         flBottomBut-> {
-                            if (!item.completed && (item.current_users == null || !item.current_users!!.contains(AccountManager.getAccount()?.userId))) {
-                                joinCallback(item.id)
-                            }
+                             joinCallback(item.id)
                         }
                     }
                 }
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index cc06a31..358d3a6 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -119,5 +119,6 @@
     <string name="record_cash_title_hint">Total sacado até o momento:</string>
     <string name="participar_ed">Já participou</string>
     <string name="remain_time">Reembolso em</string>
+    <string name="has_joined_zerobuy">You have participated this activity.</string>
 
 </resources>
\ No newline at end of file