Change add to cart stock error notice in WooCommerce - php

Question

When a customer tries to add too many of an item to cart, they see this error notice:
You cannot add that amount to the cart - we have X in stock and you already have Y in your cart.
This behavior is included on WC_Cart add_to_cart() method source code at line 1067.
I will like to hide stock details and replace it with:
You cannot add that amount to the cart — we don't have enough in stock.
How to change this add to cart stock error notice in WooCommerce, without overwriting source code?

Answer 1

That is possible using gettext filter hook in a custom hooked function this way:
add_filter( 'gettext', 'custom_add_to_cart_stock_error_notice', 10, 3 );
function custom_add_to_cart_stock_error_notice( $translated, $text, $domain ) {
if ( $text === 'You cannot add that amount to the cart — we have %1$s in stock and you already have %2$s in your cart.' && 'woocommerce' === $domain ) {
$translated = __("You cannot add that amount to the cart — we don't have enough in stock.", $domain );
}
return $translated;
}
Code goes in function.php file of your active child theme (or active theme). Tested and works.

Answer 2

You can change the said text without modifying the plugin files with the help of "Say What" Plugin. Follow the following steps to change the text:
Install Say What plugin
Visit Tools > Text Changes
Click Add New
Fill the fields as per your need e.g.
Original string: You cannot add that amount to the cart — we have %1$s in stock and you already have %2$s in your cart.
Text domain: woocommerce
Text context:
Replacement string: You cannot add that amount to the cart — we don't have enough in stock.
Click Add button to save the changes.

Answer 3

Note that #loictheaztec's code works except that the quotes need to be changed to single quote marks in the fourth line if you want to use quantities
add_filter( 'gettext', 'custom_add_to_cart_stock_error_notice', 10, 3 );
function custom_add_to_cart_stock_error_notice( $translated, $text, $domain ) {
if ( $text === 'You cannot add that amount to the cart — we have %1$s in stock and you already have %2$s in your cart.' && 'woocommerce' === $domain ) {
$translated = __('You cannot add that to the cart — we have %1$s in stock and you already have %2$s in your cart.', $domain );
}