https://yithemes.com/themes/plugins/yith-woocommerce-sequential-order-number/
YITH WooCommerce Sequential Order Number has been conceived to solve one of the most annoying problems for the e-commerce owners.Bypassing the issue of the sequential numeration for every kind of created element (both articles or products), the plugin grants you a superior control over a consecutive numeration for the created order of your store.Moreover, you can also decide to exclude the free orders from this numeration, and record them following a different numeric order. In this way, your shop will be even more user-friendly, immediate and especially customized, using dedicated prefixes and suffixes freely to manage the orders of your customers.
Changelog * New: Support for WooCommerce 8.6 * Update: YITH plugin framework Installation Instructions These may NOT be updated. INSTRUCTIONS: - deactivate any active yith plugins/themes (necessary) - install yith-framework.zip and activate (necessary) - install and activate your yith plugins - You should now get a Registration page, or go to YITH -> License Activation menu in dashboard - activate licenses with any email and key in this format 12479bf9-e449-bb6a-8152-2016155c19f7 - the yith-framework only needs to be installed ONCE. After that other YITH Plugins can just be added, activated and registered NOTE: If you have our original Framework installed, please update to the newest included version.
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