Features
to work u need to wait till an item is on the counter
Script
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while true do for i, v in next, workspace.Checkouts.Register_Test1.Items:GetChildren() do game:GetService("ReplicatedStorage").Remote:FireServer("ScanItem", v, workspace.Checkouts.Register_Test1) end for i, v in next, workspace.Checkouts.Register_Test_2.Items:GetChildren() do game:GetService("ReplicatedStorage").Remote:FireServer("ScanItem", v, workspace.Checkouts.Register_Test_2) end task.wait() end