Hi,
Using re-sequence option in the action menu of invoice in debug mode, you can re-sequence the entries, before applying in the live, ensure in staging/test.

Thanks

Hi,

Please refer to the following links:

1. https://www.odoo.com/documentation/18.0/applications/finance/accounting/customer_invoices/sequence.html

Hope it helps.

You can achieve the YYMMDDNNN invoice numbering with daily resets in Odoo 18 by:

1. Configuring a sequence with prefix %(y)s%(month)s%(day)s and three-digit padding.
2. Using an Automated Action for daily resets (simpler, Odoo Online-friendly) or a custom module for full control (Odoo.sh/on-premise).
3. Testing thoroughly to ensure compliance and reliability.

If you want to update the sequence for the future records alone, you can follow below steps:

1. In the recently created invoice, click "reset to draft" (for eg: i have clicked "reset to draft" button in INV/2025/00015)

2. Then the generated sequence will become editable, you can enter the sequence no. there, as you want (eg: changed INV/2025/00015 as INV/2025/00050) and confirm the invoice

3. In the further creating invoice, it will generate the invoice no. as (INV/2025/00051)

Hope it is helpful!!