diff --git a/app/src/main/java/com/aurora/store/view/ui/details/AppDetailsActivity.kt b/app/src/main/java/com/aurora/store/view/ui/details/AppDetailsActivity.kt
index 708c4eef4..78e6c1d8e 100644
--- a/app/src/main/java/com/aurora/store/view/ui/details/AppDetailsActivity.kt
+++ b/app/src/main/java/com/aurora/store/view/ui/details/AppDetailsActivity.kt
@@ -33,6 +33,7 @@ import com.aurora.extensions.*
 import com.aurora.gplayapi.data.models.App
 import com.aurora.gplayapi.data.models.AuthData
 import com.aurora.gplayapi.data.models.File
+import com.aurora.gplayapi.exceptions.ApiException
 import com.aurora.gplayapi.helpers.AppDetailsHelper
 import com.aurora.gplayapi.helpers.PurchaseHelper
 import com.aurora.store.MainActivity
@@ -426,9 +427,30 @@ class AppDetailsActivity : BaseDetailsActivity() {
                 updateActionState(ActionButton.State.IDLE)
             }
         } failUi {
-            expandBottomSheet(it.message)
             updateActionState(ActionButton.State.IDLE)
-            Log.e("Failed to purchase ${app.displayName} : ${it.message}")
+            var reason = "Unknown"
+
+            when (it) {
+                is ApiException.AppNotPurchased -> {
+                    reason = getString(R.string.purchase_invalid)
+                }
+
+                is ApiException.AppNotFound -> {
+                    reason = getString(R.string.purchase_not_found)
+                }
+
+                is ApiException.AppNotSupported -> {
+                    reason = getString(R.string.purchase_unsupported)
+                }
+
+                is ApiException.EmptyDownloads -> {
+                    reason = getString(R.string.purchase_no_file)
+                }
+            }
+
+            expandBottomSheet(reason)
+
+            Log.e("Failed to purchase ${app.displayName} : $reason")
         }
     }
 
@@ -456,7 +478,7 @@ class AppDetailsActivity : BaseDetailsActivity() {
             }
         } else {
             updateActionState(ActionButton.State.IDLE)
-            expandBottomSheet(getString(R.string.purchase_no_file))
+            expandBottomSheet(getString(R.string.purchase_session_expired))
         }
     }
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index cf2b80d7f..13985888a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -306,7 +306,10 @@
 
     <string name="purchase_failed">"Download Failed"</string>
     <string name="purchase_invalid">"App not purchased"</string>
+    <string name="purchase_unsupported">"App not supported"</string>
+    <string name="purchase_not_found">"App not found"</string>
     <string name="purchase_no_file">"Could not get files"</string>
+    <string name="purchase_session_expired">"Session expired, re-login to obtain new session."</string>
 
     <string name="spoof_apply">"Make sure you re-login to apply the spoof"</string>