To show “Limited Availability” with Product has 5 in stock or under, like this.
You can use this code to Store Page Header Injection
<!-- Limited Availability - Free version @tuanphan - 21-09-2025 -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
<script>
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</script>
If you want to change text to another text, find & update these text.
