Pop-up when stock is lower then customer wants

[arjenbruinning]

Is there an extension or a way to show the customer a pop-up message when f.e. i have 4 products in stock and the customer selects 6 products. So that there comes a pop-up message to make the customer extra aware that not all products are on stock. 

Hope someone can help me. 

Kind regards, Arjen

[Magikvishal · Accepted solution]

Hi Arjen,

if your qty is in dropdown then you will write js function on change event

if your qty is in textbox then you will write js function on keyup event

[arjenbruinning]

Thank you!

Kind regards, Arjen