diff --git a/core/ShopState.lua b/core/ShopState.lua
index b1c1c95..275b834 100644
--- a/core/ShopState.lua
+++ b/core/ShopState.lua
@@ -165,6 +165,9 @@
             end
         end
     end
+    if self.eventHooks and self.eventHooks.preStockCheck then
+        eventHook.execute(self.eventHooks.preStockCheck, transaction, productsPurchased, self.products)
+    end
     local available = amountPurchased
     for _, productPurchased in ipairs(productsPurchased) do
         local productSources, productAvailable = ScanInventory.findProductItems(self.products, productPurchased.product, productPurchased.quantity * amountPurchased)
@@ -187,12 +190,14 @@
     local err
     local errMessage
     if self.eventHooks and self.eventHooks.prePurchase then
-        allowPurchase, err, errMessage = eventHook.execute(self.eventHooks.prePurchase, purchasedProduct, available, refundAmount, transaction, transactionCurrency)
+        allowPurchase, err, errMessage, invisible = eventHook.execute(self.eventHooks.prePurchase, purchasedProduct, available, refundAmount, transaction, transactionCurrency)
     end
     if allowPurchase == false then
-        refund(transactionCurrency, transaction.from, meta, transaction.value, errMessage or self.config.lang.refundDenied, err)
-        if self.eventHooks and self.eventHooks.failedPurchase then
-            eventHook.execute(self.eventHooks.failedPurchase, transaction, transactionCurrency, purchasedProduct, errMessage or self.config.lang.refundDenied, err)
+        if not invisible then
+            refund(transactionCurrency, transaction.from, meta, transaction.value, errMessage or self.config.lang.refundDenied, err)
+            if self.eventHooks and self.eventHooks.failedPurchase then
+                eventHook.execute(self.eventHooks.failedPurchase, transaction, transactionCurrency, purchasedProduct, errMessage or self.config.lang.refundDenied, err)
+            end
         end
         return
     end
diff --git a/eventHooks.lua b/eventHooks.lua
index 1a18b9e..c5a12fe 100644
--- a/eventHooks.lua
+++ b/eventHooks.lua
@@ -4,7 +4,8 @@
     -- If product is nil, product will be selected by the shop,
     -- If product is false, customer will be refunded for no product found.
     -- If product is false and errored is true, customer will be refunded with error message.
-    prePurchase = nil, -- function(product, amount, refundAmount, transaction, transactionCurrency) returns continueTransaction, errored, errorMessage
+    preStockCheck = nil, -- function(transaction, productsPurchased, products)
+    prePurchase = nil, -- function(product, amount, refundAmount, transaction, transactionCurrency) returns continueTransaction, errored, errorMessage, invisible
     purchase = nil, -- function(product, amount, refundAmount, transaction, transactionCurrency)
     failedPurchase = nil, -- function(transaction, transactionCurrency, product, errorMessage)
     programError = nil, -- function(err)
diff --git a/radon.lua b/radon.lua
index f2c022b..3419744 100644
--- a/radon.lua
+++ b/radon.lua
@@ -1,4 +1,4 @@
-local version = "1.3.25"
+local version = "1.3.26"
 local configHelpers = require "util.configHelpers"
 local schemas       = require "core.schemas"
 local ScanInventory = require("core.inventory.ScanInventory")