Can't edit the invoice number [ODOO 8.0]

Question

Hi all,
I know i can edit the invoice number sequence in Settings / Sequences and  Identifiers, but is possible edit the invoice number in the same bill?
Activating the developer mode I see that the invoice number fieldname is 'number' and the object is account.invoice.
So I search around the 'account' module and i delete the readonly=True from account_invoice.py (only in number propierty) and the readonly=1 from account_invoice_view.xml (only in number propierty), but my server crashs and need

Anil Kesariya · Answer

HI Juan Muñoz,
The invoice number is auto generated number and which is read-only.
Its the standard process its not editable otherwise anyone can change the number to any and sequence may be different.
Just revert your changes in which you made in base module it will no affect to your current database.
If your current invoice made for wrong customer than just cancel it and reuse it for another customer it will use the same sequence as it is already generated.
Regarding change the sequence number

Prasanth ks · Answer

actually i didnt understand your question, i will gave you two links to refer that you can make chances of your invoices http://www.odoo.yenthevg.com/change-invoice-numbering-odoo-8/
https://www.odoo.com/forum/help-1/question/changing-invoice-sequence-numbering-to-include-customer-reference-17213

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