diff --git a/data/config.example.lua b/data/config.example.lua
index 30aed07..4f7da83 100644
--- a/data/config.example.lua
+++ b/data/config.example.lua
@@ -20,7 +20,8 @@
   webhooks = {
     {
       type = "discord-modern",
-      url = ""
+      url = "",
+      events = { "purchase", "invalid", "error" }
     }
   },
   sounds = {
diff --git a/src/backend.lua b/src/backend.lua
index 922e164..73d3320 100644
--- a/src/backend.lua
+++ b/src/backend.lua
@@ -39,15 +39,32 @@
   end
 end
 
-local function refund(pkey, transaction, amountToPay, message, playSound)
-  playSound = playSound or true
+local function refund(pkey, transaction, amountToPay, message, isError)
+  isError = isError or true
+
   local meta = utils.parseCommonmeta(transaction.metadata)
   local returnTo = meta["meta"]["return"] or transaction.from
   logger:debug("Refunding to: " .. returnTo)
   kristly.makeTransaction(pkey, returnTo, amountToPay, message)
 
-  if playSound then
+  if isError then
     speaker:play("error")
+
+    for _, value in ipairs(config.webhooks) do
+      if utils.tableIncludes(value.events, "invalid") then
+        print("Webhook : Invalid : " .. value.type)
+
+        if value.type == "discord" then
+          webhooks.discord(value.URL,
+            "Invalid purchase by `" .. returnTo .. "`. Refunding with meta: `" .. message .. "`.")
+        elseif value.type == "googleChat" then
+          webhooks.googleChat(value.URL,
+            "Invalid purchase by `" .. returnTo .. "`. Refunding with meta: `" .. message .. "`.")
+        elseif value.type == "discord-modern" then
+          webhooks.discordModernInvalid(value.URL, returnTo, transaction.id, message)
+        end
+      end
+    end
   end
 end
 
@@ -179,8 +196,12 @@
     if webhook.type == "discord" then
       webhooks.discord(webhook.URL, message)
     elseif webhook.type == "discord-modern" then
-      webhooks.discordModern(webhook.URL, transaction.from, product.displayName, amount * product.price, transaction.id,
-        transaction.to)
+      webhooks.discordModernPurchase(
+        webhook.URL, transaction.from, product.displayName, amount * product.price,
+        transaction.id,
+        transaction.to
+      )
+
     elseif webhook.type == "googleChat" then
       webhooks.googleChat(webhook.URL, message)
     end
@@ -194,4 +215,4 @@
   ws:start()
 end
 
-parallel.waitForAny(startKristly, startListening)
\ No newline at end of file
+parallel.waitForAny(startKristly, startListening)
diff --git a/src/utils.lua b/src/utils.lua
index fafad9a..cb63f4b 100644
--- a/src/utils.lua
+++ b/src/utils.lua
@@ -52,6 +52,10 @@
   return keyset
 end
 
+---Parses commenmeta
+---@param meta string The meta to parse
+---@return table meta A table with metadata
+---@source k.lua
 function utils.parseCommonmeta(meta)
   local domainMatch = "^([%l%d-_]*)@?([%l%d-]+).kst$"
   local commonMetaMatch = "^(.+)=(.+)$"
@@ -84,4 +88,17 @@
   return tbl
 end
 
+---Checks if the tabe contains the value
+---@param tbl table The table to check if includes value
+---@param wanted string The string to check if the table includes
+function utils.tableIncludes(tbl, wanted)
+  for _, value in ipairs(tbl) do
+    if value == wanted then
+      return true
+    end
+  end
+
+  return false
+end
+
 return utils
diff --git a/src/webhook.lua b/src/webhook.lua
index a08daf4..312a5e5 100644
--- a/src/webhook.lua
+++ b/src/webhook.lua
@@ -27,7 +27,7 @@
 ---@param total number The total amount of krist earned
 ---@param transactionID number The krist transaction ID of the purchase
 ---@param addrs string The full address that was sent krist to
-function webhooks.discordModern(URL, user, item, total, transactionID, addrs)
+function webhooks.discordModernPurchase(URL, user, item, total, transactionID, addrs)
   expect(1, URL, "string")
   expect(2, user, "string")
   expect(3, item, "string")
@@ -81,6 +81,49 @@
   http.post(URL, textutils.serialiseJSON(data), { ["Content-Type"] = "application/json; charset=UTF-8" })
 end
 
+function webhooks.discordModernInvalid(URL, user, transactionID, meta)
+  local kristweb = "[KristWeb](https://krist.club/network/transactions/" .. transactionID .. ")"
+  local openWithURI = "<krist://tx/" .. transactionID .. "> (URI)"
+
+  local data = {
+    content = "",
+    username = "Kristify",
+    avatar_url = "https://media.discordapp.net/attachments/1014151202855976973/1014162892414783559/Kristify.png",
+    embeds = {
+      {
+        title = user .. " failed to buy something.",
+        color = "16750744",
+        fields = {
+          {
+            name = "Meta",
+            value = meta
+          },
+          {
+            name = "Transaction ID",
+            value = transactionID
+          },
+          {
+            name = "Open with",
+            value = kristweb .. " or " .. openWithURI
+          }
+        },
+        author = {
+          name = "Someone failed to buy something!"
+        },
+        thumbnail = {
+          url = "https://docs.krist.dev/favicon-128x128.png"
+        },
+        timestamp = os.date("!%Y-%m-%dT%TZ"),
+        footer = {
+          text = "Powered by Kristify"
+        }
+      }
+    }
+  }
+
+  http.post(URL, textutils.serialiseJSON(data), { ["Content-Type"] = "application/json; charset=UTF-8" })
+end
+
 ---Sends a webhook to a Google Chat (requires Google Workspace)
 ---@param URL string The webhook URL
 ---@param message string The messge to send