Sequential Order Numbers for WooCommerce

WooCommerce numbers orders by database ID: 1503, then 1507, then 1512. Accountants, tax offices and invoicing rules expect a sequence. Gatemi Sequential Order Numbers gives every new order the next number in a gap-free sequence — atomically, so two orders placed in the same instant can never draw the same number.

A number is assigned once and never changes. The raw number and its formatted form are frozen onto the order the moment it is created. Changing the prefix later affects only future orders — the number a customer received in their confirmation email is the number the order carries forever, and orders placed before this plugin keep the numbers they always had.

Features

• Gap-free sequential numbers for every new order — checkout, admin-created, REST and Store API alike
• Atomic assignment: the counter advances in a single database statement; no race can mint a duplicate
• Start the sequence where your books start
• Prefix and suffix with {YYYY}, {YY}, {MM}, {DD} date variables, filled in at assignment
• Zero-padding to a fixed width (42 → 00042) for accounting software
• Pre-plugin orders are never renumbered; disabling the plugin never changes assigned numbers
• A live example of the next number on the settings screen
• HPOS and Cart/Checkout Blocks compatible

Every license includes

• One year of updates and priority support, delivered straight to your WordPress dashboard.
• Use on 1, 5 or 25 sites depending on your license — local, staging and development sites are always free.
• 30-day money-back guarantee — full refund, no questions asked.
• Keeps working after expiry — if you choose not to renew, the plugin keeps running exactly as installed; it simply stops receiving updates and support until you do.

Requires WordPress 6.4+ · PHP 7.4+ · tested up to WordPress 7.0. Works with the classic and block checkout alike.