In default opencart system : Customer search product from your store and add to cart it. When he goes for purchase he suddenly found that the product he searched after wasting his time is not available in store.
Now opencart system redirects on cart page and suggest that delete the product. THAT HURTS.

This goes really bad experience on customer from your store.

This extension prevents this situation.

Note: If you find any issue during the installation OR you need support(free) from me. You can email me with the following details
1) Extension purchase id
2) You opencart admin and FTP access.

After my support, if extension still does not work on your store then your payment will be refunded. Feel free to buy the extension.
How it works?

When customer add to cart any product that is out of stock. Extension will display error message to the customer and product will not add to cart.

If customer add 1000 quantity of any product and your stock has 800 items of that product, this extension will show error message and suggest customer to product maximum quantity of item that is available.

You can set error message from admin panel edit module page with MULTI LANGUAGE.

Extension works on product option quantity also.

No core files will change.

Demo
Username : demo
Password: demo


For any Question you can post comment here.

Note: If you find any issue during the installation OR you need support(free) from me. You can email me with the following details
1) Extension purchase id
2) You opencart admin and FTP access.

After my support, if extension still does not work on your store then your payment will be refunded. Feel free to buy the extension.
You can find my email address in the extension OR comment here for support, I'll contact you.