Because this is built to your exact jurisdiction and entity rules, typical delivery is about one working week from when we confirm your numbering requirements, formats, reset rules, and WooCommerce/HPOS setup. We share the timeline in writing before starting. Backfilling historical orders, if requested, is scoped and scheduled separately so it never disturbs your live counters.

Yes. Every build includes a post-deployment support window for bug fixes and compatibility with WooCommerce and WordPress updates, including HPOS changes. After that window we offer ongoing support and maintenance so your numbering stays compliant as your store, tax rules, or WooCommerce version evolve. We do not push silent auto-updates to your live site — changes are reviewed and deployed deliberately.

Yes. The plugin is built to be HPOS-compatible and reads and writes the invoice number on the custom order tables when HPOS is enabled, with a clean fallback to legacy post-meta when it is not. We verify this against your specific WooCommerce version and active payment gateways as part of the build.

No, and that is exactly the problem this solves. The WooCommerce order ID skips values because draft, failed, abandoned, and trashed orders all consume IDs, so the sequence has gaps. Most tax authorities reject gapped numbering. This plugin allocates a separate, genuinely gap-free invoice number from a locked counter at a controlled point in the order lifecycle.

Yes. You define the scope of each sequence — global, per year, per store or legal entity, or per billing country — and each one has its own prefix, suffix, zero-padding, start value, and reset rule. Credit notes and proforma invoices run on their own independent sequences. We configure these to match what your accountant or local regulations require.