Download the plugin & install it to your wp-content plugins folder or use the Plugins menu through WordPress Administration stretch.
Navigate to ** WooCommerce > Settings > Products > Change. add to cart. labels **..
Q Where can I find emojis to use in your label..
I hope functionnality will soon be native to WooCommerce..
Although I must say it first had to effect on Add to Cart label.
First thought the problem came from obsolete WooCommerce templates rechecked WooCommerce Status.
coincidence led me to discover it instead had to do with incompatibility with some Woo plugins for invoices shipping or center.
Once deactivated WC Custom Add to Cart labels worked.
We had to build something that needed to shift.
Browse the code recheck out SVN repository or subscribe to the development log RSS....
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